Baharipristis bastetiae (5)
WERNER, 1989
Original description species: WERNER, 1989
Genus: Baharipristis WERNER, 1989
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bahariyodon bartheli (6)
(WERNER, 1989)
Synonyms: Lissodus bartheli
Original description species: (WERNER, 1989)
Genus: Bahariyodon DUFFIN, 2001
Family: Polyacrodontidae GLICKMAN, 1964
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bandringa herdinae (2)
ZANGERL, 1979
Valid name: Bandringa rayi
Valid name: Bandringa rayi
Original description species: ZANGERL, 1979
Genus: Bandringa ZANGERL, 1969
Family: Bandringidae ZANGERL, 1969
Superfamily: Ctenacanthoidea
Cohort: Euselachii
Subclass: Elasmobranchii
Bandringa rayi (5)
ZANGERL, 1969
Synonyms: Bandringa herdinae
Original description species: ZANGERL, 1969
Genus: Bandringa ZANGERL, 1969
Family: Bandringidae ZANGERL, 1969
Superfamily: Ctenacanthoidea
Cohort: Euselachii
Subclass: Elasmobranchii
Barbclabornia cf. luederensis (1)
(BERMAN, 1970)
Valid name: Barbclabornia luedersensis
Valid name: Barbclabornia luedersensis
Original description species: (BERMAN, 1970)
Genus: Barbclabornia JOHNSON, 2003
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Barbclabornia luedersensis (16)
(BERMAN, 1970)
Synonyms: Barbclabornia cf. luederensis, Xenacanthus luedersensis
Original description species: (BERMAN, 1970)
Genus: Barbclabornia JOHNSON, 2003
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Batacanthus gigas (1)
BRANSON, 1916
Original description species: BRANSON, 1916
Genus: Batacanthus
Family: incert. fam.
Order: Ichthyodorulites
Batacanthus sp. (1)

Genus: Batacanthus
Family: incert. fam.
Order: Ichthyodorulites
Bates biserratus (2)
PROBST, 1877
Valid name: Myliobatis biserratus
Valid name: Myliobatis biserratus
Original description species: PROBST, 1877
Genus: Bates PROBST, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates fluitans (2)
PROBST, 1877
Valid name: Myliobatis fluitans
Valid name: Myliobatis fluitans
Original description species: PROBST, 1877
Genus: Bates PROBST, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates lineatus (2)
PROBST, 1877
Valid name: Myliobatis lineatus
Valid name: Myliobatis lineatus
Original description species: PROBST, 1877
Genus: Bates PROBST, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates spectabilis (2)
PROBST, 1877
Valid name: Myliobatis spectabilis
Valid name: Myliobatis spectabilis
Original description species: PROBST, 1877
Genus: Bates PROBST, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bathytheristes gracilis (1)
DUFFIN, 1995
Original description species: DUFFIN, 1995
Genus: Bathytheristes DUFFIN, 1995
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Bavariscyllium tischlingeri (4)
THIES, 2005
Original description species: THIES, 2005
Genus: Bavariscyllium THIES, 2005
Family: Scyliorhinidae GILL, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bdellodus bollensis (2)
QUENSTEDT, 1882
Original description species: QUENSTEDT, 1882
Genus: Bdellodus QUENSTEDT, 1882
Family: Acrodontidae CASIER, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bdellodus sp. (1)

Genus: Bdellodus QUENSTEDT, 1882
Family: Acrodontidae CASIER, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bealbonn rogaire (1)
LUND & GROGAN, 2004
Original description species: LUND & GROGAN, 2004
Genus: Bealbonn LUND & GROGAN, 2004
Family: Gregoriidae LUND & GROGAN, 2004
Subclass: Euchondrocephali
Belantsea montana (3)
LUND, 1989
Original description species: LUND, 1989
Genus: Belantsea LUND, 1989
Family: Belantseidae LUND, 1989
Order: Petalodontiformes
Subclass: Euchondrocephali
Belantsea occidentalis (1)

Genus: Belantsea LUND, 1989
Family: Belantseidae LUND, 1989
Order: Petalodontiformes
Subclass: Euchondrocephali
Belemnobatis aff. sismondae (1)
THIOLLIÈRE, 1852
Valid name: Belemnobatis sismondae
Valid name: Belemnobatis sismondae
Original description species: THIOLLIÈRE, 1852
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis aff. variabilis (1)
UNDERWOOD & REES, 2002
Valid name: Belemnobatis variabilis
Valid name: Belemnobatis variabilis
Original description species: UNDERWOOD & REES, 2002
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis annectans (1)
(WOODWARD, 1919)
Valid name: Protospinax annectans
Valid name: Protospinax annectans
Original description species: (WOODWARD, 1919)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis aominensis (1)
CUNY, SRISUK, KHAMHA, SUTEETHORN & TONG, 2009
Original description species: CUNY, SRISUK, KHAMHA, SUTEETHORN & TONG, 2009
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis cf. moorbergensis (2)
(THIES, 1983)
Valid name: Belemnobatis moorbergensis
Valid name: Belemnobatis moorbergensis
Original description species: (THIES, 1983)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis cf. picteti (1)
(CAPPETTA, 1975)
Valid name: Rhinobatos picteti
Valid name: Rhinobatos picteti
Original description species: (CAPPETTA, 1975)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis kermacki (1)
UNDERWOOD & WARD, 2004
Original description species: UNDERWOOD & WARD, 2004
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis moorbergensis (5)
(THIES, 1983)
Synonyms: Belemnobatis cf. moorbergensis, Spathobatis moorbergensis
Original description species: (THIES, 1983)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis morinicus (2)
(SAUVAGE 1873)
Valid name: Spathobatis morinicus
Valid name: Spathobatis morinicus
Original description species: (SAUVAGE 1873)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis noviodunumensis (1)
DELSATE & CANDONI, 2001
Original description species: DELSATE & CANDONI, 2001
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis sismondae (7)
THIOLLIÈRE, 1852
Synonyms: Belemnobatis aff. sismondae
Original description species: THIOLLIÈRE, 1852
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis sp. (9)

Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis stahli (1)
UNDERWOOD & WARD, 2004
Original description species: UNDERWOOD & WARD, 2004
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis variabilis (4)
UNDERWOOD & REES, 2002
Synonyms: Belemnobatis aff. variabilis
Original description species: UNDERWOOD & REES, 2002
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis werneri (3)
(THIES, 1983)
Synonyms: Spathobatis werneri
Original description species: (THIES, 1983)
Genus: Belemnobatis THIOLLIÈRE, 1852
Family: Rhinobatidae MÜLLER & HENLE, 1838
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bethacanthus insolitus (1)
ZANGERL, 1990
Original description species: ZANGERL, 1990
Genus: Bethacanthus ZANGERL, 1990
Family: Stethacanthidae LUND, 1974
Order: Symmoriiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bibractopiscis niger (1)
HEYLER & POPLIN, 1982
Original description species: HEYLER & POPLIN, 1982
Genus: Bibractopiscis HEYLER & POPLIN, 1982
Order: Cladodontida
Subclass: Elasmobranchii
Bidentia bidens (1)
(QUENSTEDT, 1852)
Valid name: Heterodontus bidens
Valid name: Heterodontus bidens
Original description species: (QUENSTEDT, 1852)
Genus: Bidentia MUSPER, 1920
Family: Heterodontidae GRAY, 1851
Order: Heterodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biforisodus major (1)
DAIMERIES, 1888
Valid name: Megasqualus orpiensis
Valid name: Megasqualus orpiensis
Original description species: DAIMERIES, 1888
Genus: Biforisodus DAIMERIES, 1888
Family: Squalidae BONAPARTE, 1834
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biforisodus minor (1)
DAIMERIES, 1888
Valid name: Squalus minor
Valid name: Squalus minor
Original description species: DAIMERIES, 1888
Genus: Biforisodus DAIMERIES, 1888
Family: Squalidae BONAPARTE, 1834
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biropristis landbecki (5)
SUÁREZ & CAPPETTA, 2004
Original description species: SUÁREZ & CAPPETTA, 2004
Genus: Biropristis SUÁREZ & CAPPETTA, 2004
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bobbodus schaefferi (1)
ZANGERL, 1981
Original description species: ZANGERL, 1981
Genus: Bobbodus ZANGERL, 1981
Family: Eugeneodontidae ZANGERL, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus schafferi (1)
ZANGERL, 1981
Original description species: ZANGERL, 1981
Genus: Bobbodus ZANGERL, 1981
Family: Eugeneodontidae ZANGERL, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus sp. (2)

Genus: Bobbodus ZANGERL, 1981
Family: Eugeneodontidae ZANGERL, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus xerxesi (1)
HAMPE, HAIRAPETIAN, DORKA, WITZMANN, AKBARI & KORN, 2013
Original description species: HAMPE, HAIRAPETIAN, DORKA, WITZMANN, AKBARI & KORN, 2013
Genus: Bobbodus ZANGERL, 1981
Family: Eugeneodontidae ZANGERL, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bohemiacanthus carinatus (14)
(FRITSCH, 1890)
Valid name: Triodus carinatus
Valid name: Triodus carinatus
Original description species: (FRITSCH, 1890)
Genus: Bohemiacanthus SCHNEIDER, 1994
Family: Xenacanthidae FRITSCH, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bohemiacanthus oelbergensis (6)
(FRITSCH, 1890)
Original description species: (FRITSCH, 1890)
Genus: Bohemiacanthus SCHNEIDER, 1994
Family: Xenacanthidae FRITSCH, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bohemiacanthus sp. (6)

Genus: Bohemiacanthus SCHNEIDER, 1994
Family: Xenacanthidae FRITSCH, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bolivacanthus sagitalis (4)
GAGNIER, TURNER, FRIMAN,SUAREZ-RIGLOS & JANVIER, 1988
Original description species: GAGNIER, TURNER, FRIMAN,SUAREZ-RIGLOS & JANVIER, 1988
Genus: Bolivacanthus GAGNIER, TURNER, FRIMAN,SUAREZ-RIGLOS & JANVIER, 1988
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii
Borealotodus benyamovski (1)
ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Original description species: ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Genus: Borealotodus ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus borealis (2)
ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Synonyms: Mennerotodus borealis
Original description species: ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Genus: Borealotodus ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus karpinski (1)
(MENNER, 1928)
Valid name: Araloselachus cuspidatus
Valid name: Araloselachus cuspidatus
Original description species: (MENNER, 1928)
Genus: Borealotodus ZHELEZKO IN ZHELEZKO & KOZLOV, 1999
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis ackermani (2)
CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Synonyms: Borodinopristis cf. ackermani
Original description species: CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Genus: Borodinopristis CASE, 1987
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis cf. ackermani (1)
CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Valid name: Borodinopristis ackermani
Valid name: Borodinopristis ackermani
Original description species: CASE, SCHWIMMER, BORODIN & LEGGETT, 2001
Genus: Borodinopristis CASE, 1987
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis schwimmeri (5)
CASE, 1987
Original description species: CASE, 1987
Genus: Borodinopristis CASE, 1987
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis shannoni (1)
CASE, COOK, WILSON & BORODIN, 2012
Original description species: CASE, COOK, WILSON & BORODIN, 2012
Genus: Borodinopristis CASE, 1987
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis sp. (1)

Genus: Borodinopristis CASE, 1987
Family: Sclerorhynchidae CAPPETTA, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus alvarezi (1)
BERNARDEZ, 2002
Original description species: BERNARDEZ, 2002
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus bighornensis (1)
CASE, 1987
Valid name: Cantioscyllium bighornensis
Valid name: Cantioscyllium bighornensis
Original description species: CASE, 1987
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus estesi (1)
(HERMAN, 1977)
Valid name: Cantioscyllium estesi
Valid name: Cantioscyllium estesi
Original description species: (HERMAN, 1977)
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus greeni (2)
CAPPETTA, 1973
Valid name: Chiloscyllium greeni
Valid name: Chiloscyllium greeni
Original description species: CAPPETTA, 1973
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus hornerstownensis (1)
CASE, BORODIN & LEGGETT, 2001
Original description species: CASE, BORODIN & LEGGETT, 2001
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus roklumensis (1)
THIES, 1981
Valid name: Paraginglymostoma roklumensis
Valid name: Paraginglymostoma roklumensis
Original description species: THIES, 1981
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus sp. (8)

Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus templeuvensis (1)
MOREAU & MATHIS, 2000
Original description species: MOREAU & MATHIS, 2000
Genus: Brachaelurus OGILBY, 1907
Family: Brachaeluridae APPLEGATE, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bracheria wallerniensis (2)
PFEIL, 1984
Original description species: PFEIL, 1984
Genus: Bracheria PFEIL, 1984
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachiacanthus semiplanus (6)
FRITSCH, 1889
Synonyms: Brachyacanthus semiplanus
Original description species: FRITSCH, 1889
Genus: Brachiacanthus FRITSCH, 1889
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Brachyacanthus semiplanus (2)
FRITSCH, 1889
Valid name: Brachiacanthus semiplanus
Valid name: Brachiacanthus semiplanus
Original description species: FRITSCH, 1889
Genus: Brachyacanthus FRITSCH, 1889
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Brachycarcharias cf. twiggsensis (3)
(CASE, 1981)
Valid name: Brachycarcharias twiggsensis
Valid name: Brachycarcharias twiggsensis
Original description species: (CASE, 1981)
Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias koerti (18)
(STROMER, 1910)
Synonyms: Carcharias aff. koerti , Carcharias koerti, Odontaspis cf. koerti, Odontaspis koerti, Odontaspis (Parodontaspis) koerti, Odontaspis (Synodontaspis) koerti, Otodus koerti, Serratolamna koerti, Synodontaspis koerti
Original description species: (STROMER, 1910)
Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias lerichei (35)
(CASIER, 1946)
Synonyms: Carcharias lerichei, Isurolamna lerichei, Lamna lerichei, Serratolamna lerichei
Original description species: (CASIER, 1946)
Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias mississippiensis (2)
(CASE, 1994)
Synonyms: Pseudodontaspis mississippiensis
Original description species: (CASE, 1994)
Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias sp. (2)

Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias twiggsensis (14)
(CASE, 1981)
Synonyms: Brachycarcharias cf. twiggsensis, Cretolamna twiggsensis, Lamna twiggsensis
Original description species: (CASE, 1981)
Genus: Brachycarcharias CAPPETTA & NOLF, 2005
Family: Odontaspididae MÜLLER & HENLE, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachymylus altidens (7)
WOODWARD, 1892
Synonyms: Brachymylus cf. altidens
Original description species: WOODWARD, 1892
Genus: Brachymylus WOODWARD, 1892
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus bogolubovi (1)
AVERIANOV, 1992
Original description species: AVERIANOV, 1992
Genus: Brachymylus WOODWARD, 1892
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus cf. altidens (1)
WOODWARD, 1892
Valid name: Brachymylus altidens
Valid name: Brachymylus altidens
Original description species: WOODWARD, 1892
Genus: Brachymylus WOODWARD, 1892
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus minor (3)
WOODWARD, 1892
Original description species: WOODWARD, 1892
Genus: Brachymylus WOODWARD, 1892
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus sp. (2)

Genus: Brachymylus WOODWARD, 1892
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachyrhizodus cf. wichitaensis (1)
ROMER, 1942
Valid name: Brachyrhizodus wichitaensis
Valid name: Brachyrhizodus wichitaensis
Original description species: ROMER, 1942
Genus: Brachyrhizodus ROMER, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus mcnultii (1)
(THURMOND, 1971)
Valid name: Brachyrhizodus mcnultyi
Valid name: Brachyrhizodus mcnultyi
Original description species: (THURMOND, 1971)
Genus: Brachyrhizodus ROMER, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus mcnultyi (37)
(THURMOND, 1971)
Synonyms: Brachyrhizodus mcnultii, Hypolophus mcnultyi, Pseudohypolophus cf. mcnultyi, Pseudohypolophus macnultyi, Pseudohypolophus mcnultyi
Original description species: (THURMOND, 1971)
Genus: Brachyrhizodus ROMER, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus sp. (2)

Genus: Brachyrhizodus ROMER, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus wichitaensis (20)
ROMER, 1942
Synonyms: Brachyrhizodus cf. wichitaensis
Original description species: ROMER, 1942
Genus: Brachyrhizodus ROMER, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Bransonella cf. nebraskensis (2)
(JOHNSON, 1984)
Valid name: Bransonella nebraskensis
Valid name: Bransonella nebraskensis
Original description species: (JOHNSON, 1984)
Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella lingulata (4)
IVANOV & GINTER, 1996
Original description species: IVANOV & GINTER, 1996
Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella nebraskensis (15)
(JOHNSON, 1984)
Synonyms: Bransonella cf. nebraskensis, Xenacanthus nebraskensis
Original description species: (JOHNSON, 1984)
Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella sp. (11)

Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella tribula (1)
ELLIOTT & HODNETT, 2013
Original description species: ELLIOTT & HODNETT, 2013
Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella tridentata (3)
HARLTON, 1933
Original description species: HARLTON, 1933
Genus: Bransonella HARLTON, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Breviacanthus brevis (3)
PHILLIPS, 1871
Synonyms: Breviacanthus brevispinus, Nemacanthus brevis, Nemacanthus brevispinus
Original description species: PHILLIPS, 1871
Genus: Breviacanthus MAISEY, 1976
Family: Palaeospinacidae REGAN, 1906
Order: Synechodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Britobatos primarmata (4)
(WOODWARD, 1889)
Synonyms: Raja primarmata, Rhinobatos aff. primarmatus, Rhinobatos berytensis, Rhinobatos primarmatus
Original description species: (WOODWARD, 1889)
Genus: Britobatos CLAESON, UNDERWOOD & WARD, 2013
Family: Trygonorrhinidae LAST, SÉRET & NAYLOR, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bryactinus amorphus (3)
COPE, 1875
Original description species: COPE, 1875
Genus: Bryactinus COPE, 1875
Family: Callorhinchidae GARMAN, 1901
Order: Chimaeriformes
Subclass: Holocephali
Burnhamia aff. daviesi (1)
(WOODWARD, 1889)
Valid name: Burnhamia daviesi
Valid name: Burnhamia daviesi
Original description species: (WOODWARD, 1889)
Genus: Burnhamia CAPPETTA, 1976
Family: Mobulidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia daviesi (38)
(WOODWARD, 1889)
Synonyms: Burnhamia aff. daviesi, Burnhamia (Rhinoptera) daviesi, Rhinoptera daviesi, Rhinoptera daviesii
Original description species: (WOODWARD, 1889)
Genus: Burnhamia CAPPETTA, 1976
Family: Mobulidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia davisi (4)
(WOODWARD, 1889)
Synonyms: Chomatodus davisi, Petalodus davisii
Original description species: (WOODWARD, 1889)
Genus: Burnhamia CAPPETTA, 1976
Family: Mobulidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia fetahi (3)
CAPPETTA, 1985
Original description species: CAPPETTA, 1985
Genus: Burnhamia CAPPETTA, 1976
Family: Mobulidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia sp. (19)

Genus: Burnhamia CAPPETTA, 1976
Family: Mobulidae BONAPARTE, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia (Rhinoptera) daviesi (1)
(WOODWARD, 1889)
Valid name: Burnhamia daviesi
Valid name: Burnhamia daviesi
Original description species: (WOODWARD, 1889)
Genus: Burnhamia (Rhinoptera)
Family: Rhinopteridae JORDAN & EVERMANN, 1896
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythaelurus sp. (2)

Genus: Bythaelurus COMPAGNO, 1988
Family: Pentanchinae SMITH & RADCLIFFE, 1912
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythaelurus steurbauti (2)
HOVESTADT & HOVESTADT-EULER, 1995
Valid name: Parmaturus steurbauti
Valid name: Parmaturus steurbauti
Original description species: HOVESTADT & HOVESTADT-EULER, 1995
Genus: Bythaelurus COMPAGNO, 1988
Family: Pentanchinae SMITH & RADCLIFFE, 1912
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythiacanthus aff. ianishevskyi (1)
(KHABAKOB)
Valid name: Bythiacanthus ianishevskyi
Valid name: Bythiacanthus ianishevskyi
Original description species: (KHABAKOB)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus brevis (1)
(AGASSIZ, 1837)
Valid name: Avonacanthus brevis
Valid name: Avonacanthus brevis
Original description species: (AGASSIZ, 1837)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus cf. siderius (1)
(LEIDY, 1870)
Valid name: Bythiacanthus siderius
Valid name: Bythiacanthus siderius
Original description species: (LEIDY, 1870)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus ianishevskyi (2)
(KHABAKOB)
Synonyms: Bythiacanthus aff. ianishevskyi
Original description species: (KHABAKOB)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus lopesi (1)
FIGUEROA & GALLO, 2017
Original description species: FIGUEROA & GALLO, 2017
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus lucasi (2)
(EASTMAN, 1902)
Synonyms: Ctenacanthus lucasi
Original description species: (EASTMAN, 1902)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus peregrinus (1)
(KHABAKOB)
Original description species: (KHABAKOB)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus siderius (4)
(LEIDY, 1870)
Synonyms: Asteracanthus siderius, Bythiacanthus cf. siderius
Original description species: (LEIDY, 1870)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus solidus (2)
(EASTMAN, 1902)
Synonyms: Ctenacanthus solidus
Original description species: (EASTMAN, 1902)
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus sp. (5)

Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus vanhornei (3)
ST. JOHN & WORTHEN, 1875
Original description species: ST. JOHN & WORTHEN, 1875
Genus: Bythiacanthus ST. JOHN & WORTHEN, 1875
Family: Heslerodidae MAISEY, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Byzenos latipinnatus (1)
MÜNSTER
Original description species: MÜNSTER
Genus: Byzenos MÜNSTER, 1840
Family: Janassidae HANSEN, 1985
Order: Petalodontiformes
Subclass: Euchondrocephali