Original description species: Lund, 1988
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Lund, 1988
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Lund, 1988
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Lund, 1977
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Lund, 1988
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Lund, 1988
Genus: Echinochimaera Lund, 1977
Family: Echinochimaeridae Lund, 1977
Suborder: Echinochimaeroidei
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Corax australis, Pseudocorax australis
Original description species: (Chapman, 1909)
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Agassiz, 1856
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Bonnaterre, 1788)
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus cf. caspius
Original description species: Glikman, 1964
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus cf. cookei-f
Original description species: Pietschmann, 1928
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Pledge, 1992
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Pfeil, 1983
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Antunes & Cappetta, 2002
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bogan, Agnolin, Otero, Egli, Suárez, Soto-Acuña & Novas, 2017
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Pfeil, 1983
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus aff. pollerspoecki
Original description species: Pfeil, 1983
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus possii
Original description species: Ameghino, 1906
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus cf. priscus
Original description species: Arambourg, 1952
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Lawley, 1876
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus cf. riepli
Original description species: Pfeil, 1983
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot, Cappetta & Adnet, 2014
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Kitamura, 2013
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Echinorhinus aff. weltoni
Original description species: Pfeil, 1983
Genus: Echinorhinus Blainville, 1816
Family: Echinorhinidae Gill, 1862
Order: Echinorhiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Chimaera agassizi, Chimaera agassizii, Chimaera (Ischyodon) agassizi, Chimaera (Ischyodon) agassizii, Edaphodon agassizii, Ischyodon agassizii, Ischyodus agassizi
Original description species: (Buckland, 1835)
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Leriche, 1926
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Darteville & Casier, 1959
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Applegate, 1970
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera (Edaphodon) bucklandi, Edaphodon bucklandii, Edaphodon cf. bucklandi, Edaphodon eurygnathus, Ganodus bucklandi
Original description species: Agassiz, 1843
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Newton, 1878
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Popov & Yarkov, 2001
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Shin, 2010
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Consoli, 2006
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Riess, 1887
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Newton, 1878
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Eumylodus laqueatus
Original description species: (Leidy, 1873)
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Agassiz, 1843
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera mantelli, Chimaera mantellii, Chimaera (Psittacodon) mantellii, Edaphodon mantellii, Psittacodon mantellii
Original description species: (Buckland, 1835)
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Edaphodon cf. mirabilis
Original description species: Chapman & Cudmore, 1924
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Diphrissa latidens, Diphrissa solidulus, Edaphodon fecundus, Edaphodon gaskillii, Edaphodon incrassatus, Edaphodon latidens, Edaphodon longirostris, Edaphodon miersii, Edaphodon monolophus, Edaphodon solidulus, Ischyodus fecundus, Ischyodus gaskillii, Ischyodus incrassatus, Ischyodus longirostris, Ischyodus miersii, Ischyodus mirificus, Ischyodus monolophus, Ischyodus solidulus
Original description species: Leidy, 1856
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Carraroli, 1897
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Edaphodon cf. reedi, Edaphodon reedi
Original description species: Newton, 1878
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Canevet & Lebrun, 2017
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera sedgwicki, Chimaera (Psittacodon) sedgwickii, Edaphodon cf. sedgwicki, Edaphodon sedgwickii, Psittacodon sedgwickii
Original description species: (Agassiz, 1838)
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Gouiric-Cavalli, Cabrera, Cione, O'gorman, Coria & Fernández, 2015
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Edaphodon cf. sweeti
Original description species: Chapman & Pritchard, 1907
Genus: Edaphodon Buckland, 1838
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Hay, 1909
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Newberry, 1888
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Edestus cf. heinrichi, Edestus heinrichii, Edestus heinrichsi
Original description species: Newberry & Worthen, 1870
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Missuna, 1908
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Missuna, 1908
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Edestodus kolomnensis
Original description species: Lebedev, 2001
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Edestus cf. minor
Original description species: Newberry & Worthen, 1866
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Hay, 1909
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Hay, 1912
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Edestus cf. newtoni, Lestrodus newtoni
Original description species: Woodward, 1917
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Trautschold, 1879
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Hay, 1909
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Newton, 1904
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Leidy, 1855
Genus: Edestus Leidy, 1855
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Hybodus basanus, Hybodus sulcatus
Original description species: (Egerton, 1844)
Genus: Egertonodus Maisey, 1987
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Rees & Underwood, 2008
Genus: Egertonodus Maisey, 1987
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Chimaera (Ganodus) avita, Ischyodus avita, Ischyodus avitus
Original description species: (Von Meyer, 1862)
Genus: Elasmodectes Woodward, 1888
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera falcata, Chimaera (Psittacodon) falcata, Ganodus falcatus, Ganodus psittacinus, Ischyodus falcatus, Leptacanthus semistriatus, Psittacodon falcatum, Psittacodon falcatus
Original description species: (Egerton, 1843)
Genus: Elasmodectes Woodward, 1888
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Elasmodectes cf. kiprijanoffi
Original description species: Nessov in Nessov et al., 1988
Genus: Elasmodectes Woodward, 1888
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Elasmognathus willettii
Original description species: (Newton, 1878)
Genus: Elasmodectes Woodward, 1888
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera zangerli
Original description species: Stahl & Chatterjee, 1999
Genus: Elasmodectes Woodward, 1888
Family: Edaphodontidae Owen, 1846
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Elasmodus avirostris
Original description species: Averianov, 1999
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Synonyms: Chimaera greenoughii, Elasmodus greenovi
Original description species: (Agassiz, 1838)
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Synonyms: Elasmodus hunterii
Original description species: Egerton, 1843
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Original description species: Ward, 1977
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Synonyms: Elasmodus khosatskyi
Original description species: Averianov, 1999
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Original description species: Averianov, 1999
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Original description species: Averianov & Glikman, 1994
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Original description species: Averianov, 2001
Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Genus: Elasmodus Egerton, 1843
Subclass: Holocephali

Original description species: Vieth, 1980
Genus: Ellesmereia Vieth, 1980
Family: Elegestolepididae Andreev, Coates, Karatajute-Talimaa, Shelton, Cooper & Sansom, 2017
Order: Elegestolepidida

Original description species: Trinajstic & George, 2009
Genus: Emerikodus Trinajstic & George, 2009
Family: incert. fam.
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Original description species: Turner, 2004
Genus: Emsolepis Turner, 2004
Family: incert. fam.
Order: incert. sedis

Original description species: Cappetta & Case, 1999
Genus: Enantiobatis Cappetta & Case, 1999
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Arratia, Kriwet & Heinrich, 2002
Genus: Engaibatis Arratia, Kriwet & Heinrich, 2002
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Vullo & Cappetta & Néraudeau, 2007
Genus: Engolismaia Vullo, Cappetta & Néraudeau, 2007
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Tomodus convexus
Original description species: (Davis, 1883 ex Agassiz MSS.)
Genus: Enniskillen
Subclass: Holocephali

Original description species: Engelbrecht, Mörs, Reguero & Kriwet, 2017
Genus: Eodalatias Engelbrecht, Mörs, Reguero & Kriwet, 2017
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Dalatias aff. crenulatus, Dalatias cf. crenulatus, Dalatias crenulatus, Somniosus cf. crenulatus, Somniosus crenulatus
Original description species: (Arambourg, 1952)
Genus: Eodalatias Engelbrecht, Mörs, Reguero & Kriwet, 2017
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Feichtinger, Pollerspöck, Harzhauser, Auer, Ćorić, Kranner & Guinot, 2022
Genus: Eoetmopterus Müller & Schöllmann, 1989
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eoetmopterus cf. supracretaceus, Eoetmopterus supracretaceous
Original description species: Müller & Schöllmann, 1989
Genus: Eoetmopterus Müller & Schöllmann, 1989
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Alopiopsis plejodon
Original description species: Cappetta, 1975
Genus: Eogaleus Cappetta, 1975
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ward & Duffin, 1989
Genus: Eomanodon Ward & Duffin, 1989
Family: incert. fam.
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Mobula irenae
Original description species: Pfeil, 1981
Genus: Eomanta Pfeil, 1981
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Metlaouia delpiti
Original description species: (Noubhani & Cappetta, 1997)
Genus: Eometlaouia Noubhani & Cappetta, 2002
Family: Orectolobidae Gill, 1896
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Metlaouia numidica, Squatirhina numidica
Original description species: (Arambourg, 1952)
Genus: Eometlaouia Noubhani & Cappetta, 2002
Family: Orectolobidae Gill, 1896
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eomobula aff. stehmanni
Original description species: Herman, Hovestadt-Euler & Hovestadt, 1989
Genus: Eomobula Herman, Hovestadt-Euler & Hovestadt, 1989
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Narcopterus bolcanus, Platyrhina bolcensis
Original description species: (Heckel, 1851)
Genus: Eoplatyrhina Marrama, Carnevale, Claeson, Naylor & Kriwet, 2020
Family: Platyrhinidae Jordan, 1923
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet, Cappetta, Guinot & Notarbartolo Di Sciara, 2012
Genus: Eoplinthicus Cappetta & Stringer, 2002
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Stringer, 2002
Genus: Eoplinthicus Cappetta & Stringer, 2002
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Kriwet, Klug, Canudo & Cuenca-Bescos, 2008
Genus: Eoptolamna Kriwet, Klug, Canudo. & Cuenca-Bescos, 2008
Family: Eoptolamnidae Kriwet, Klug, Canudo & Cuenca-Bescos, 2008
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot, Underwood, Cappetta & Ward, 2013
Genus: Eoptolamna Kriwet, Klug, Canudo. & Cuenca-Bescos, 2008
Family: Eoptolamnidae Kriwet, Klug, Canudo & Cuenca-Bescos, 2008
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Saugen, Roberts, Engelschion & Hurum, 2024
Genus: Eorapax Saugen, Roberts, Engelschion & Hurum, 2024
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Genus: Eorhincodon Li, 1997
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Li, 1997
Genus: Eorhincodon Li, 1997
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Rhinobatos primaevus, Rhinobatus primaevus
Original description species: (De Zigno, 1874)
Genus: Eorhinobatos Marramà, Carnevale, Naylor, Varese, Giusberti & Kriwet, 2020
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Case, Cook & Wilson, 2011
Genus: Eorhinoptera Case, Cook & Wilson, 2011
Family: Rhinopteridae Jordan & Evermann, 1896
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Herman & Van Den Eeckhaut, 2010
Genus: Eoscymnus Herman & Van Den Eeckhaut, 2010
Family: Eoscymnidae Herman & Van Den Eeckhaut, 2010
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eosqualiolus aff. aturensis
Original description species: Adnet, 2006
Genus: Eosqualiolus Adnet, 2006
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Schlögl, 2013
Genus: Eosqualiolus Adnet, 2006
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eostegostoma aff. angustum, Eostegostoma angusta
Original description species: Nolf & Taverne in Herman, 1977
Genus: Eostegostoma Herman, 1977
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zhelezko, 1987
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Duffin & Batchelor, 2024
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman & Zhelezko, 1979
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Cumbaa, 2010
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman & Zhelezko, 1979
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias striatula, Odontaspis striatula, Odontaspis (Synodontaspis) striatula, Palaeohypotodus striatula, Scapanorhynchus striatula
Original description species: (Dalinkevicius, 1935)
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias subulata, Carcharias subulatus, Cretolamna subulata, Lamna subulata, Lamna (Odontaspis) cf. subulata, Lamna (Odontaspis) subulata, Odontaspis subulata, Odontaspis subulatus, Scapanorhynchus cf. subulatus, Scapanorhynchus subulata, Scapanorhynchus (Odontaspis) subulatus
Original description species: (Agassiz, 1843)
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna cf. venusta, Lamna venusta, Plicatolamna venusta
Original description species: (Leriche, 1906)
Genus: Eostriatolamia Glikman, 1979
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eotorpedo aff. hilgendorfi, Torpedo hilgendorfi
Original description species: (Jaekel, 1904)
Genus: Eotorpedo White, 1934
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: White, 1934
Genus: Eotorpedo White, 1934
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Herman, 1974
Genus: Eotorpedo White, 1934
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1988
Genus: Eotorpedo White, 1934
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman, 1980
Genus: Eoxyphodolamia Glikman, 1980
Family: incert. fam.
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Rhynchobatus arganiae
Original description species: (Arambourg, 1952)
Genus: Erguitaia Cappetta, 1989
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1991
Genus: Erguitaia Cappetta, 1989
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Agassizodus gronlandicus
Original description species: (Nielsen, 1932)
Genus: Erikodus Nielsen, 1952
Family: Caseodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Cladacanthus paradoxus, Erismacanthus jonesii
Original description species: M'Coy, 1848
Genus: Erismacanthus Mccoy, 1848
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Synonyms: Cladacanthus major
Original description species: Davis, 1883
Genus: Erismacanthus Mccoy, 1848
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Original description species: Ginter, Hairapetian & Grigoryan, 2011
Genus: Ertychius Ginter, Hairapetian & Grigoryan, 2011
Family: incert. fam.
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Original description species: Cappetta, 1991
Genus: Erythrobatis Cappetta, 1991
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Genus: Essexraja Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Casier, 1966
Genus: Etmopterus Rafinesque, 1810
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Etmopterus cf. cahuzaci
Original description species: Adnet, 2006
Genus: Etmopterus Rafinesque, 1810
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Miroscyllium ledouxi
Original description species: (Adnet, 2000)
Genus: Etmopterus Rafinesque, 1810
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Miroscyllium sp-f
Genus: Etmopterus Rafinesque, 1810
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Barkas, 1869
Genus: Euctenius Barkas, 1874
Family: Edestidae Jaekel, 1899
Superfamily: Edestoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Wellburn, 1901
Genus: Euctenodopsis Wellburn, 1901
Family: incert. fam.
Order: incert. sedis

Genus: Eugaleus Gill, 1864
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zangerl, 1981
Genus: Eugenodus Zangerl, 1981
Family: Eugeneodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Genus: Euglossodus White & Moy-Thomas, 1940
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali

Synonyms: Glossodus lingua-bovis, Glossodus marginatus
Original description species: (M'Coy, 1848)
Genus: Euglossodus White & Moy-Thomas, 1940
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali

Original description species: (Newberry & Worthen, 1866)
Genus: Eunemacanthus St. John & Worthen, 1875
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Original description species: Lebedev, 1996
Genus: Eunemacanthus St. John & Worthen, 1875
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Genus: Euprotomicroides Hulley & Penrith, 1966
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Euprotomicrus Gill, 1865
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Genus: Eurasiabatis Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii