Iago angustidens (9)
(CAPPETTA, 1973)
Synonyms: Triakis angustidens
Original description species: (CAPPETTA, 1973)
Genus: Iago COMPAGNO & SPRINGER, 1971
Family: Triakidae GRAY, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Iago carlaluisai (1)
LEDER, 2013
Original description species: LEDER, 2013
Genus: Iago COMPAGNO & SPRINGER, 1971
Family: Triakidae GRAY, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Iago sp. (15)

Genus: Iago COMPAGNO & SPRINGER, 1971
Family: Triakidae GRAY, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Iansan beurleni (7)
(SANTOS, 1968)
Synonyms: Rhinobatos beurleni
Original description species: (SANTOS, 1968)
Genus: Iansan BRITO & SERET, 1996
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Iberolepis aragonensis (1)
MADER, 1986
Original description species: MADER, 1986
Genus: Iberolepis MADER, 1986
Subclass: Elasmobranchii
Iberolepis sp. (1)

Genus: Iberolepis MADER, 1986
Subclass: Elasmobranchii
Iberotrygon plagiolophus (1)
KRIWET, NUNN & KLUG, 2009
Original description species: KRIWET, NUNN & KLUG, 2009
Genus: Iberotrygon KRIWET, NUNN & KLUG, 2009
Family: incert. fam.
Order: Sclerorhynchiformes
Superorder: Pristiorajea
Subclass: Elasmobranchii
Icanodus limitaris (1)
(ST. JOHN & WORTHEN, 1883)
Original description species: (ST. JOHN & WORTHEN, 1883)
Genus: Icanodus MILLER, 1892
Family: Cochliodontidae OWEN, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali
Idiacanthus bellistriatus (1)
GUNNELL, 1933
Valid name: Gunnellodus bellistriatus
Valid name: Gunnellodus bellistriatus
Original description species: GUNNELL, 1933
Genus: Idiacanthus GUNNELL, 1933
Subclass: Elasmobranchii
Idiacanthus cameratus (1)
GUNNELL, 1933
Valid name: Gunnellodus bellistriatus
Valid name: Gunnellodus bellistriatus
Original description species: GUNNELL, 1933
Genus: Idiacanthus GUNNELL, 1933
Subclass: Elasmobranchii
Idiacanthus sp. (1)

Genus: Idiacanthus GUNNELL, 1933
Subclass: Elasmobranchii
Idiacanthus trispinosus (1)
GUNNELL, 1933
Valid name: Gunnellodus bellistriatus
Valid name: Gunnellodus bellistriatus
Original description species: GUNNELL, 1933
Genus: Idiacanthus GUNNELL, 1933
Subclass: Elasmobranchii
Igdabatis cf. indicus (1)
PRASAD & CAPPETTA, 1993
Valid name: Igdabatis indicus
Valid name: Igdabatis indicus
Original description species: PRASAD & CAPPETTA, 1993
Genus: Igdabatis CAPPETTA, 1972
Family: Myliobatidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Igdabatis cf. sigmodon (1)
CAPPETTA, 1972
Valid name: Igdabatis sigmodon
Valid name: Igdabatis sigmodon
Original description species: CAPPETTA, 1972
Genus: Igdabatis CAPPETTA, 1972
Family: Myliobatidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Igdabatis indicus (7)
PRASAD & CAPPETTA, 1993
Synonyms: Igdabatis cf. indicus
Original description species: PRASAD & CAPPETTA, 1993
Genus: Igdabatis CAPPETTA, 1972
Family: Myliobatidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Igdabatis sigmodon (5)
CAPPETTA, 1972
Synonyms: Igdabatis cf. sigmodon
Original description species: CAPPETTA, 1972
Genus: Igdabatis CAPPETTA, 1972
Family: Myliobatidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ikamauius ensifer (5)
(DAVIS, 1888)
Synonyms: Pristiophorus ensifer, Trygon ensifer
Original description species: (DAVIS, 1888)
Genus: Ikamauius KEYES, 1979
Family: Pristiophoridae BLEEKER, 1859
Order: Pristiophoriformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Iniopera cf. richardsoni (1)
ZANGERL & CASE, 1973
Valid name: Iniopera richardsoni
Valid name: Iniopera richardsoni
Original description species: ZANGERL & CASE, 1973
Genus: Iniopera ZANGERL & CASE, 1973
Family: Sibyrhynchidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Iniopera richardsoni (2)
ZANGERL & CASE, 1973
Synonyms: Iniopera cf. richardsoni
Original description species: ZANGERL & CASE, 1973
Genus: Iniopera ZANGERL & CASE, 1973
Family: Sibyrhynchidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Iniopera sp. (1)

Genus: Iniopera ZANGERL & CASE, 1973
Family: Sibyrhynchidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Iniopteryx cf. rushlaui (1)
ZANGERL & CASE, 1973
Valid name: Iniopteryx rushlaui
Valid name: Iniopteryx rushlaui
Original description species: ZANGERL & CASE, 1973
Genus: Iniopteryx ZANGERL & CASE, 1973
Family: Iniopterygidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Iniopteryx rushlaui (4)
ZANGERL & CASE, 1973
Synonyms: Iniopteryx cf. rushlaui
Original description species: ZANGERL & CASE, 1973
Genus: Iniopteryx ZANGERL & CASE, 1973
Family: Iniopterygidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Iniopteryx tedwhitei (1)
ZANGERL & CASE, 1973
Original description species: ZANGERL & CASE, 1973
Genus: Iniopteryx ZANGERL & CASE, 1973
Family: Iniopterygidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Inioxyele whitei (1)
ZANGERL & CASE, 1973
Original description species: ZANGERL & CASE, 1973
Genus: Inioxyele ZANGERL & CASE, 1973
Family: Sibyrhynchidae ZANGERL & CASE, 1973
Order: Iniopterygiformes
Subclass: Holocephali
Isacrodus marthae (1)
IVANOV, NESTELL & NESTELL, 2012
Original description species: IVANOV, NESTELL & NESTELL, 2012
Genus: Isacrodus IVANOV, NESTELL & NESTELL, 2012
Family: Jalodontidae GINTER, HAIRAPETIAN & KLUG, 2002
Order: Phoebodontiformes
Subclass: Elasmobranchii
Isanodus nongbualamphuensis (1)
KHAMHA, CUNY & LAUPRASERT, 2016
Original description species: KHAMHA, CUNY & LAUPRASERT, 2016
Genus: Isanodus CUNY, SUTEETHORN, KAMHA, BUFFETAUT & PHILIPPE, 2006
Family: Lonchidiidae HERMAN, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Isanodus paladeji (7)
CUNY, SUTEETHORN, KAMHA, BUFFETAUT & PHILIPPE, 2006
Original description species: CUNY, SUTEETHORN, KAMHA, BUFFETAUT & PHILIPPE, 2006
Genus: Isanodus CUNY, SUTEETHORN, KAMHA, BUFFETAUT & PHILIPPE, 2006
Family: Lonchidiidae HERMAN, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Isanodus sp. (1)

Genus: Isanodus CUNY, SUTEETHORN, KAMHA, BUFFETAUT & PHILIPPE, 2006
Family: Lonchidiidae HERMAN, 1977
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Ischirhiza nigeriensis (2)
(TABASTE, 1963)
Valid name: Ischyrhiza nigeriensis
Valid name: Ischyrhiza nigeriensis
Original description species: (TABASTE, 1963)
Genus: Ischirhiza
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyodon agassizii (1)
(BUCKLAND, 1835)
Valid name: Edaphodon agassizii
Valid name: Edaphodon agassizii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon beaumontii (1)
(EGERTON, 1843)
Original description species: (EGERTON, 1843)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon brevirostris (1)
(AGASSIZ, 1843)
Original description species: (AGASSIZ, 1843)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon bucklandii (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon dufrenoyii (1)
EGERTON, 1847
Original description species: EGERTON, 1847
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon dutertrii (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon egertonii (1)
(EGERTON, 1843)
Valid name: Ischyodus egertoni
Valid name: Ischyodus egertoni
Original description species: (EGERTON, 1843)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon emarginata (1)
EGERTON, 1843
Valid name: Ischyodus emarginatus
Valid name: Ischyodus emarginatus
Original description species: EGERTON, 1843
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon helvetica (1)
(EGERTON, 1843)
Original description species: (EGERTON, 1843)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon johnsonii (1)
AGASSIZ, 1843
Original description species: AGASSIZ, 1843
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon tessonii (1)
BUCKLAND, 1843
Valid name: Ischyodus tessoni
Valid name: Ischyodus tessoni
Original description species: BUCKLAND, 1843
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodon townsendii (1)
(BUCKLAND, 1835)
Valid name: Ischyodus townsendii
Valid name: Ischyodus townsendii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodon
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus acutus (2)
MEYER, 1859
Synonyms: Ischyodus cf. acutus
Original description species: MEYER, 1859
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus aff. bifurcatus (1)
CASE, 1978
Valid name: Ischyodus bifurcatus
Valid name: Ischyodus bifurcatus
Original description species: CASE, 1978
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus agassizi (1)
(BUCKLAND, 1835)
Valid name: Edaphodon agassizii
Valid name: Edaphodon agassizii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus avitus (2)
VON MEYER, 1862
Valid name: Elasmodectes avitus
Valid name: Elasmodectes avitus
Original description species: VON MEYER, 1862
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus beaugrandi (2)
SAUVAGE, 1867
Original description species: SAUVAGE, 1867
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus beaumonti (6)
EGERTON, 1843
Synonyms: Ischyodus cf. beaumonti
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus beaumontii (2)
(EGERTON, 1843)
Original description species: (EGERTON, 1843)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus bifurcatus (10)
CASE, 1978
Synonyms: Ischyodus aff. bifurcatus, Ischyodus cf. bifurcatus
Original description species: CASE, 1978
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus bouchardi (1)
SAUVAGE, 1867
Original description species: SAUVAGE, 1867
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus brevirostris (4)
(AGASSIZ, 1843)
Original description species: (AGASSIZ, 1843)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus bucklandi (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. acutus (1)
MEYER, 1859
Valid name: Ischyodus acutus
Valid name: Ischyodus acutus
Original description species: MEYER, 1859
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. beaumonti (1)
EGERTON, 1843
Valid name: Ischyodus beaumonti
Valid name: Ischyodus beaumonti
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. bifurcatus (1)
CASE, 1978
Valid name: Ischyodus bifurcatus
Valid name: Ischyodus bifurcatus
Original description species: CASE, 1978
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. dolloi (2)
LERICHE, 1902
Valid name: Ischyodus dolloi
Valid name: Ischyodus dolloi
Original description species: LERICHE, 1902
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. egertoni (2)
(EGERTON, 1843)
Valid name: Ischyodus egertoni
Valid name: Ischyodus egertoni
Original description species: (EGERTON, 1843)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. schuebleri (1)
QUENSTEDT, 1858
Valid name: Ischyodus schuebleri
Valid name: Ischyodus schuebleri
Original description species: QUENSTEDT, 1858
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus cf. townsendi (1)
(BUCKLAND, 1835)
Valid name: Ischyodus townsendii
Valid name: Ischyodus townsendii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus colei (1)
(AGASSIZ, 1843)
Valid name: Ischyodus tessoni
Valid name: Ischyodus tessoni
Original description species: (AGASSIZ, 1843)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus curvidens (9)
EGERTON, 1843
Synonyms: Ganodus dentatus, Ganodus neglectus, Ganodus rugulosus
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus divaricatus (2)
COPE, 1869
Original description species: COPE, 1869
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus dolloi (17)
LERICHE, 1902
Synonyms: Ischyodus cf. dolloi
Original description species: LERICHE, 1902
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus dufrenovi (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus dufrenoyi (2)
EGERTON, 1847
Original description species: EGERTON, 1847
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus dutertrei (3)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus dutetrii (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus duvrenoyi (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus egertoni (12)
(EGERTON, 1843)
Synonyms: Chimaera (Ischyodon) egertoni, Ischyodon egertonii, Ischyodus cf. egertoni
Original description species: (EGERTON, 1843)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus emarginatus (5)
EGERTON, 1843
Synonyms: Chimaera (Ischyodon) emarginata, Ganodus emarginatus, Ischyodon emarginata
Common name: dubia
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus eocaenus (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus falcatus (1)
EGERTON, 1843
Valid name: Elasmodectes falcatus
Valid name: Elasmodectes falcatus
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus fecundus (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus gaskillii (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus helveticus (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus incisus (2)
NEWTON
Original description species: NEWTON
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus incrassatus (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus johnsoni (2)
AGASSIZ, 1843
Original description species: AGASSIZ, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus laterigerus (2)
COPE, 1869
Original description species: COPE, 1869
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus longirostris (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus miersii (1)
(MARSH, 1869)
Original description species: (MARSH, 1869)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus mirificus (1)
(LEIDY, 1856)
Valid name: Edaphodon mirificus
Valid name: Edaphodon mirificus
Original description species: (LEIDY, 1856)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus monolophus (2)
COPE, 1869
Original description species: COPE, 1869
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus mortoni (3)
CHAPMAN & PRITCHARD, 1907
Original description species: CHAPMAN & PRITCHARD, 1907
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus neglectus (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus obruchevi (1)
AVERIANOV, 1992
Original description species: AVERIANOV, 1992
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus orthorhinus (1)
EGERTON, 1871
Original description species: EGERTON, 1871
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus planus (2)
NEWTON, 1878
Synonyms: Elasmodus planus
Original description species: NEWTON, 1878
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus psittacinus (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus quenstedti (3)
(WAGNER, 1857)
Synonyms: Chimaera (Ischyodon) quenstedti
Original description species: (WAGNER, 1857)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus rayhaasi (2)
HOGANSON & ERICKSON, 2005
Original description species: HOGANSON & ERICKSON, 2005
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus rigauxi (2)
SAUVAGE, 1867
Original description species: SAUVAGE, 1867
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus rugulosus (1)
EGERTON, 1843
Original description species: EGERTON, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus sauvagei (2)
HAMY, 1866
Original description species: HAMY, 1866
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus schübleri (2)
QUENSTEDT, 1858
Valid name: Ischyodus schuebleri
Valid name: Ischyodus schuebleri
Original description species: QUENSTEDT, 1858
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus schuebleri (5)
QUENSTEDT, 1858
Synonyms: Chimaera schübleri, Ischyodus cf. schuebleri, Ischyodus schübleri
Original description species: QUENSTEDT, 1858
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus smockii (2)
COPE, 1869
Original description species: COPE, 1869
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus solidulus (1)
COPE, 1869
Original description species: COPE, 1869
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus sp. (16)

Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus stenobryus (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus suevicus (2)
PHILIPPI, 1897
Original description species: PHILIPPI, 1897
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus suprajurensis (2)
SAUVAGE, 1867
Original description species: SAUVAGE, 1867
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus tessoni (11)
BUCKLAND, 1843
Synonyms: Chimaera (Ganodus) colei, Chimaera (Ischyodon) tessoni, Ganodus oweni, Ischyodon tessonii, Ischyodus colei, Leptacanthus serratus
Original description species: BUCKLAND, 1843
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus thurmanni (9)
PICET & CAMPICHE, 1858
Original description species: PICET & CAMPICHE, 1858
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus townsendi (1)
(BUCKLAND, 1835)
Valid name: Ischyodus townsendii
Valid name: Ischyodus townsendii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus townshendi (1)
(BUCKLAND, 1835)
Valid name: Ischyodus townsendii
Valid name: Ischyodus townsendii
Original description species: (BUCKLAND, 1835)
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus tripartitus (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyodus williamsae (4)
CASE, 1991
Original description species: CASE, 1991
Genus: Ischyodus EGERTON, 1843
Family: Edaphodontidae OWEN, 1846
Order: Chimaeriformes
Subclass: Holocephali
Ischyrhiza aff. avonicola (1)
ESTES, 1964
Valid name: Texatrygon avonicola
Valid name: Texatrygon avonicola
Original description species: ESTES, 1964
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza aff. mira (2)
LEIDY, 1856
Valid name: Ischyrhiza mira
Valid name: Ischyrhiza mira
Original description species: LEIDY, 1856
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza antiqua (2)
LEIDY, 1856
Valid name: Ischyrhiza mira
Valid name: Ischyrhiza mira
Original description species: LEIDY, 1856
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza avonicola (19)
ESTES, 1964
Valid name: Texatrygon avonicola
Valid name: Texatrygon avonicola
Original description species: ESTES, 1964
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza basinensis (1)
CASE, 1987
Original description species: CASE, 1987
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza cf. avonicola (6)
ESTES, 1964
Valid name: Texatrygon avonicola
Valid name: Texatrygon avonicola
Original description species: ESTES, 1964
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza cf. texana (1)
CAPPETTA & CASE, 1975
Valid name: Kiestus texana
Valid name: Kiestus texana
Original description species: CAPPETTA & CASE, 1975
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza chilensis (9)
(PHILIPPI, 1887)
Original description species: (PHILIPPI, 1887)
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza georgiensis (1)
CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Original description species: CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza germaniae (1)
(ALBERS & WEILER, 1964)
Valid name: Texatrygon avonicola
Valid name: Texatrygon avonicola
Original description species: (ALBERS & WEILER, 1964)
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza hartenbergeri (7)
CAPPETTA, 1975
Original description species: CAPPETTA, 1975
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza iwakiensis (3)
UYENO & HASEGAWA, 1986
Valid name: Onchosaurus pharao
Valid name: Onchosaurus pharao
Original description species: UYENO & HASEGAWA, 1986
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza mira (46)
LEIDY, 1856
Synonyms: Ischyrhiza aff. mira, Ischyrhiza antiqua, Ischyrhiza mira mira, Onchosaurus (Ischyrhiza) antiquus
Original description species: LEIDY, 1856
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza mira mira (5)
LEIDY, 1856
Valid name: Ischyrhiza mira
Valid name: Ischyrhiza mira
Original description species: LEIDY, 1856
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza mira schneideri (1)
SLAUGHTER & STEINER, 1968
Original description species: SLAUGHTER & STEINER, 1968
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza monasterica (1)
CASE & CAPPETTA, 1997
Original description species: CASE & CAPPETTA, 1997
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza radiata (2)
CLARK, 1895
Original description species: CLARK, 1895
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza schneideri (8)
(SLAUGHTER & SCHNEIDER, 1968)
Original description species: (SLAUGHTER & SCHNEIDER, 1968)
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza serra (1)
NESSOV, 1997
Original description species: NESSOV, 1997
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza sp. (7)

Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza texana (3)
CAPPETTA & CASE, 1975
Valid name: Kiestus texana
Valid name: Kiestus texana
Original description species: CAPPETTA & CASE, 1975
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ischyrhiza viaudi (2)
CAPPETTA, 1981
Original description species: CAPPETTA, 1981
Genus: Ischyrhiza LEIDY, 1856
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Ishaquia globidens (2)
(ARAMBOURG, 1952)
Synonyms: Dasyatis globidens
Original description species: (ARAMBOURG, 1952)
Genus: Ishaquia NOUBHANI & CAPPETTA, 1995
Family: Dasyatidae JORDAN, 1888
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isidobatus triacarinatus (2)

Genus: Isidobatus WERNER, 1989
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius aff. triangulus (4)
(PROBST, 1879)
Valid name: Isistius triangulus
Valid name: Isistius triangulus
Original description species: (PROBST, 1879)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius aff. trituratus (1)
(WINKLER, 1876)
Valid name: Isistius trituratus
Valid name: Isistius trituratus
Original description species: (WINKLER, 1876)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius cf. triangulus (6)
(PROBST, 1879)
Valid name: Isistius triangulus
Valid name: Isistius triangulus
Original description species: (PROBST, 1879)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius cf. trituratus (4)
(WINKLER, 1876)
Valid name: Isistius trituratus
Valid name: Isistius trituratus
Original description species: (WINKLER, 1876)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius sp. (20)

Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius triangulus (35)
(PROBST, 1879)
Synonyms: Centrina dertonensis, Isistius aff. triangulus, Isistius cf. triangulus, Isistius dertonensis, Scymnorhinus triangulus, Scymnus triangulus
Original description species: (PROBST, 1879)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isistius trituratus (36)
(WINKLER, 1876)
Synonyms: Corax trituratus, Isistius aff. trituratus, Isistius cf. trituratus, Scymnus trituratus
Original description species: (WINKLER, 1876)
Genus: Isistius GILL, 1865
Family: Dalatiidae GRAY, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isogomphodon acuarius (21)
(PROBST, 1879)
Synonyms: Alopecias acuarias, Aprionodon acuarias, Aprionodon acuarius, Carcharhinus acuarius, Carcharhinus (Aprionodon) gracilis, Carcharhinus (Aprionodon) lerichei minuta, Isogomphodon gracilis
Original description species: (PROBST, 1879)
Genus: Isogomphodon GILL, 1862
Family: Carcharhinidae JORDAN & EVERMANN, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isogomphodon caunellensis (5)
(CAPPETTA, 1970)
Synonyms: Aprionodon aff. caunellensis, Aprionodon caunellensis, Aprionodon cf. caunellensis
Original description species: (CAPPETTA, 1970)
Genus: Isogomphodon GILL, 1862
Family: Carcharhinidae JORDAN & EVERMANN, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isogomphodon sp. (2)

Genus: Isogomphodon GILL, 1862
Family: Carcharhinidae JORDAN & EVERMANN, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isotaenia neocaeariensis (1)
COPE, 1875
Original description species: COPE, 1875
Genus: Isotaenia COPE, 1875
Order: Chimaeriformes
Subclass: Holocephali
Isotaenia neocaesariensis (3)
COPE, 1875
Original description species: COPE, 1875
Genus: Isotaenia COPE, 1875
Order: Chimaeriformes
Subclass: Holocephali
Isurolamna aff. inflata (1)
(LERICHE, 1905)
Valid name: Isurolamna inflata
Valid name: Isurolamna inflata
Original description species: (LERICHE, 1905)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna affinis (26)
(CASIER, 1946)
Synonyms: Isurolamna hopei affinis, Lamiostoma affinis, Lamna affinis, Odontaspis hopei affinis, Odontaspis (Synodontaspis) hopei affinis
Original description species: (CASIER, 1946)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna bajarunasi (4)
(GLIKMAN & ZHELEZKO, 1985)
Synonyms: Lamiostoma bajarunasi
Original description species: (GLIKMAN & ZHELEZKO, 1985)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna gracilis (12)
(LE HON, 1871)
Original description species: (LE HON, 1871)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna inflata (24)
(LERICHE, 1905)
Synonyms: Isurolamna aff. inflata, Lamna inflata, Lamna vincenti inflata
Original description species: (LERICHE, 1905)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna lerichei (2)
(CASIER, 1946)
Valid name: Brachycarcharias lerichei
Valid name: Brachycarcharias lerichei
Original description species: (CASIER, 1946)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna rupeliensis (3)
(LE HON, 1871)
Valid name: Rhizoquadrangulus rupeliensis
Valid name: Rhizoquadrangulus rupeliensis
Original description species: (LE HON, 1871)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna sp. (4)

Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurolamna vandenbroecki (4)
(WINKLER, 1880)
Valid name: Lethenia vandenbroecki
Valid name: Lethenia vandenbroecki
Original description species: (WINKLER, 1880)
Genus: Isurolamna CAPPETTA, 1976
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus acuminatus (1)
(AGASSIZ, 1843)
Valid name: Acrolamna acuminata
Valid name: Acrolamna acuminata
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus aff. benedeni (1)
(LE HON, 1871)
Valid name: Parotodus benedenii
Valid name: Parotodus benedenii
Original description species: (LE HON, 1871)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus aff. desori flandrica (1)
(LERICHE, 1910)
Valid name: Isurus flandricus
Valid name: Isurus flandricus
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus aff. flandricus (1)
(LERICHE, 1910)
Valid name: Isurus flandricus
Valid name: Isurus flandricus
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus angustidens (3)
(REUSS, 1845)
Valid name: Paranomotodon angustidens
Valid name: Paranomotodon angustidens
Original description species: (REUSS, 1845)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus benedeni (18)
(LE HON, 1871)
Valid name: Parotodus benedenii
Valid name: Parotodus benedenii
Original description species: (LE HON, 1871)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus benedeni bolderiensis (1)
GEYN VAN DE, 1937
Valid name: Parotodus benedeni bolderiensis
Valid name: Parotodus benedeni bolderiensis
Original description species: GEYN VAN DE, 1937
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus benedictus (1)
(LE HON, 1871)
Valid name: Parotodus benedenii
Valid name: Parotodus benedenii
Original description species: (LE HON, 1871)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus cf. angustidens (1)
(REUSS, 1845)
Valid name: Paranomotodon angustidens
Valid name: Paranomotodon angustidens
Original description species: (REUSS, 1845)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus cf. benedeni (3)
(LE HON, 1871)
Valid name: Parotodus benedenii
Valid name: Parotodus benedenii
Original description species: (LE HON, 1871)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus cf. desori (2)
(AGASSIZ, 1843)
Valid name: Isurus desori
Valid name: Isurus desori
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus cf. hastalis (2)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus cf. praecursor (1)
(LERICHE, 1905)
Valid name: Isurus praecursor
Valid name: Isurus praecursor
Original description species: (LERICHE, 1905)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus crassidens (1)
(DIXON, 1850)
Valid name: Cretodus crassidens
Valid name: Cretodus crassidens
Original description species: (DIXON, 1850)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus crassus (1)
(AGASSIZ, 1843)
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus denticulatus (1)
GLIKMAN, 1957
Valid name: Cretolamna appendiculata
Valid name: Cretolamna appendiculata
Original description species: GLIKMAN, 1957
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus desori (166)
(AGASSIZ, 1843)
Synonyms: Isurus cf. desori, Isurus desorii, Lamiostoma desori, Lamna desori, Lamna inaequilateralis, Lamna lyellii, Oxyrhina aff. desori, Oxyrhina cf. desori, Oxyrhina desori, Oxyrhina desorii
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus desori flandrica (2)
(LERICHE, 1910)
Valid name: Isurus flandricus
Valid name: Isurus flandricus
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus desori flandricus (2)
(LERICHE, 1910)
Valid name: Isurus flandricus
Valid name: Isurus flandricus
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus desori praecursor (1)
(LERICHE, 1905)
Valid name: Isurus praecursor
Valid name: Isurus praecursor
Original description species: (LERICHE, 1905)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus desorii (7)
(AGASSIZ, 1843)
Valid name: Isurus desori
Valid name: Isurus desori
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus eocaenus (2)
(WOODWARD, 1889)
Valid name: Xiphodolamia eocaena
Valid name: Xiphodolamia eocaena
Original description species: (WOODWARD, 1889)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus escheri (17)
(AGASSIZ, 1843)
Valid name: Carcharomodus escheri
Valid name: Carcharomodus escheri
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus flandricus (16)
(LERICHE, 1910)
Synonyms: Cosmopolitodus flandricus, Cosmopolitodus (Isurus) flandricus, Isurus aff. desori flandrica, Isurus aff. flandricus, Isurus desori flandrica, Isurus desori flandricus, Isurus gracilis flandrica, Macrorhizodus flandricus, Oxyrhina desori flandrica
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus gracilis (3)

Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus gracilis flandrica (1)
(LERICHE, 1910)
Valid name: Isurus flandricus
Valid name: Isurus flandricus
Original description species: (LERICHE, 1910)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus hastalis (135)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus hastalis escheri (4)
(AGASSIZ, 1843)
Valid name: Carcharomodus escheri
Valid name: Carcharomodus escheri
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus hastalis hastalis (6)

Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus hastalis pliocaenica (1)
GEYN, 1937
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: GEYN, 1937
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus hastalis trigonodon (6)

Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus leptodon (1)

Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus mantelli (7)
(AGASSIZ, 1843)
Valid name: Cretoxyrhina mantelli
Valid name: Cretoxyrhina mantelli
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus mantellii (2)
(AGASSIZ, 1843)
Valid name: Cretoxyrhina mantelli
Valid name: Cretoxyrhina mantelli
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus minutus (14)
(AGASSIZ, 1843)
Synonyms: Lamna aff. minuta, Oxyrhina minuta
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus nakaminatoensis (1)
SAITO, 1961
Original description species: SAITO, 1961
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus nova (2)
(WINKLER, 1876)
Valid name: Anomotodon novus
Valid name: Anomotodon novus
Original description species: (WINKLER, 1876)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus novus (9)
(WINKLER, 1876)
Valid name: Anomotodon novus
Valid name: Anomotodon novus
Original description species: (WINKLER, 1876)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus oxyrhinchus hastalis (2)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus oxyrhynchus hastalis (1)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus pagoda (7)
(NOETLING, 1901)
Valid name: Glyphis pagoda
Valid name: Glyphis pagoda
Original description species: (NOETLING, 1901)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus planus (18)
(AGASSIZ, 1856)
Synonyms: Oxyrhina plana
Original description species: (AGASSIZ, 1856)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus praecursor (66)
(LERICHE, 1905)
Synonyms: Cosmopolitodus praecursor, Cosmopolitodus (Isurus) praecursor, Isurus cf. praecursor, Isurus desori praecursor, Macrorhizodus praecursor, Macrorhizodus (Isurus) precursor, Otodus lawleyi, Oxyrhina desori praecursor, Oxyrhina latus, Oxyrhina praecursor
Original description species: (LERICHE, 1905)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus praecursor americanus (1)
(LERICHE, 1942)
Valid name: Macrorhizodus americanus
Valid name: Macrorhizodus americanus
Original description species: (LERICHE, 1942)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus rameshi (2)
MEHROTRA, MISHRA & SRIVASTAVA, 1973
Original description species: MEHROTRA, MISHRA & SRIVASTAVA, 1973
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus retoflexus (3)
(AGASSIZ, 1843)
Valid name: Isurus retroflexus
Valid name: Isurus retroflexus
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus retroflexus (61)
(AGASSIZ, 1838)
Synonyms: Anotodus complanatus, Anotodus retroflexus, Isurus retoflexus, Oxyrhina complanata, Oxyrhina retroflexa
Original description species: (AGASSIZ, 1838)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus sanctae-clarae (1)
JORDAN & HANNIBAL, 1923
Valid name: Isurus sanctaeclarae
Valid name: Isurus sanctaeclarae
Original description species: JORDAN & HANNIBAL, 1923
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus schoutedeni (1)
(DARTEVELLE & CASIER, 1943)
Valid name: Cretolamna schoutedeni
Valid name: Cretolamna schoutedeni
Original description species: (DARTEVELLE & CASIER, 1943)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus sillimanii (2)
(GIBBES, 1847)
Valid name: Isurus sillimani
Valid name: Isurus sillimani
Original description species: (GIBBES, 1847)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus smithii (1)
JORDAN, 1907
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: JORDAN, 1907
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus sp. (63)

Synonyms: Isuropsis sp., Macrorhizodus sp.
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus triangularis (1)
(EGERTON, 1844)
Valid name: Cretolamna triangularis
Valid name: Cretolamna triangularis
Original description species: (EGERTON, 1844)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus tumulus (2)
(AGASSIZ, 1856)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1856)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus winkleri (1)
(VINCENT, 1876)
Valid name: Anomotodon novus
Valid name: Anomotodon novus
Original description species: (VINCENT, 1876)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus xiphodon (10)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus RAFINESQUE, 1810
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus (Cosmopolitodus) hastalis (1)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus (Cosmopolitodus)
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus (Cretoxyrhina) mantelli (1)
(AGASSIZ, 1843)
Valid name: Cretoxyrhina mantelli
Valid name: Cretoxyrhina mantelli
Original description species: (AGASSIZ, 1843)
Genus: Isurus (Cretoxyrhina)
Family: Cretoxyrhinidae GLICKMAN, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Isurus (Macrorhizodus) hastalis (1)
(AGASSIZ, 1843)
Valid name: Cosmopolitodus hastalis
Valid name: Cosmopolitodus hastalis
Original description species: (AGASSIZ, 1843)
Genus: Isurus (Macrorhizodus)
Family: Lamnidae MÜLLER & HENLE, 1838
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Itapyrodus punctatus (5)
SILVA SANTOS, 1990
Original description species: SILVA SANTOS, 1990
Genus: Itapyrodus SILVA SANTOS, 1990
Family: Petalodontidae NEWBERRY & WORTHEN, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Ixobatis mucronata (4)
(ARAMBOURG, 1952)
Synonyms: Raja mucronata
Original description species: (ARAMBOURG, 1952)
Genus: Ixobatis NOUBHANI & CAPPETTA, 1995
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii