Synonyms: Carcharhinus americanus, Isurus praecursor americanus, Macrorhizodus cf. americanus, Macrorhizodus praecursor americanus, Oxyrhina praecursor americana
Original description species: (Leriche, 1942)
Genus: Macrorhizodus Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cosmopolitodus flandricus, Cosmopolitodus (Isurus) flandricus, Isurus aff. desori flandrica, Isurus aff. flandricus, Isurus desori aff. flandriens, Isurus desori flandrica, Isurus desori flandricus, Isurus desorii aff. flandricus, Isurus desorii flandricus, Isurus flandricus, Isurus gracilis flandrica, Oxyrhina cf. flandrica, Oxyrhina desori flandrica, Oxyrhina flandrica
Original description species: (Leriche, 1910)
Genus: Macrorhizodus Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Macrorhizodus cf. nolfi
Original description species: Zhelezko, 1999
Genus: Macrorhizodus Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cosmopolitodus praecursor, Cosmopolitodus (Isurus) praecursor, Isurus aff. praecursor, Isurus cf. praecursor, Isurus desori praecursor, Isurus praecursor, Macrorhizodus (Isurus) precursor, Otodus lawleyi, Oxyrhina desori praecursor, Oxyrhina latus, Oxyrhina praecursor
Original description species: (Leriche, 1905)
Genus: Macrorhizodus Glikman, 1964
Family: Lamnidae Bonaparte, 1835
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Galeus hassei, Pristiurus hassei
Original description species: (Woodward, 1889)
Genus: Macrourogaleus Fowler, 1947
Family: Paraorthacodontidae Klug, 2009
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Werner, 1989
Genus: Mafdetia Werner, 1989
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Klug, Coates, Frey, Greif, Jobbins, Pohle, Lagnaoui, Haouz & Ginter, 2023
Genus: Maghriboselache Klug, Coates, Frey, Greif, Jobbins, Pohle, Lagnaoui, Haouz & Ginter, 2023
Family: Cladoselachidae Dean, 1894
Order: Symmoriiformes
Subclass: Holocephali

Original description species: Guinot, Cappetta & Adnet, 2014
Genus: Magistrauia Guinot, Cappetta & Adnet, 2014
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bronson, 2021
Genus: Maiseyacanthus Bronson, 2021
Family: incert. fam.
Order: Symmoriiformes
Superorder: Cladodontomorphi
Subclass: Holocephali

Original description species: Hairapetian, Ginter & Yazdi, 2008
Genus: Manberodus Hairapetian, Ginter & Yazdi, 2008
Family: Aztecodontidae Hairapetian, Ginter & Yazdi, 2008
Order: Omalodontiformes
Subclass: Elasmobranchii

Original description species: Engelbrecht, Mors, Reguero & Kriwet, 2019
Genus: Marambioraja Engelbrecht, Mors, Reguero & Kriwet, 2019
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Marckgrafia lybica
Original description species: Weiler, 1935
Genus: Marckgrafia Weiler, 1935
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mcmurdodus cf. featherensis
Original description species: White, 1968
Genus: Mcmurdodus White, 1968
Family: Mcmurdodontidae White, 1968
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet et al., 2020
Genus: Mecotrygon Adnet Et Al., 2020
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Shimada & Ward, 2016
Genus: Megachasma Taylor, Compagno & Struhsaker, 1983
Family: Megachasmidae Taylor, Compagno & Struhsaker, 1983
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Megachasma cf. applegatei
Original description species: Shimada, Welton & Long, 2014
Genus: Megachasma Taylor, Compagno & Struhsaker, 1983
Family: Megachasmidae Taylor, Compagno & Struhsaker, 1983
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Megachasma aff. pelagios-f, Megachasma cf. pelagios-f
Original description species: Taylor, Compagno & Struhsaker, 1983
Genus: Megachasma Taylor, Compagno & Struhsaker, 1983
Family: Megachasmidae Taylor, Compagno & Struhsaker, 1983
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Megachasma Taylor, Compagno & Struhsaker, 1983
Family: Megachasmidae Taylor, Compagno & Struhsaker, 1983
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: David, 1944
Genus: Megactenopetalus David, 1944
Family: Pristodontidae Woodward, 1889
Order: Petalodontiformes
Subclass: Euchondrocephali

Synonyms: Cretalamna bassanii, Cretolamna bassanii, Lamna bassanii, Megalolamna paradoxodon, Otodus serotinus
Original description species: (Probst, 1879)
Genus: Megalolamna Shimada, Chandler, Lam, Tanaka & Ward, 2017
Family: Otodontidae Glickman, 1964
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Ward, 1977
Genus: Megascyliorhinus Cappetta & Ward, 1977
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Megascyliorhinus cf. miocaenicus, Rhincodon cf. miocaenicus, Rhincodon miocaenicus
Original description species: (Antunes & Jonet, 1970)
Genus: Megascyliorhinus Cappetta & Ward, 1977
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Clone, 1986
Genus: Megascyliorhinus Cappetta & Ward, 1977
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Dalatias occidentalis, Gyrace occidentalis, Megasqualus serriculus, Scymnorhinus occidentalis, Scymnus occidentalis, Squalus cf. serriculus, Squalus occidentalis, Squalus serriculus
Original description species: (Agassiz, 1856)
Genus: Megasqualus Herman, 1982
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acanthias crepini, Acanthias orpiensis, Biforisodus major, Carcharias (Scoliodon) orpiensis, Megasqualus aff. orpiensis, Megasqualus crepini, Megasqualus major, Notidanus orpiensis, Squalus aff. orpiensis, Squalus orpiensis, Squalus (Acanthias) orpiensis
Original description species: (Winkler, 1874)
Genus: Megasqualus Herman, 1982
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Wang, Zhu, Jin, & Wang, 2007
Genus: Meishanselache Wang, Zhu, Jin, & Wang, 2007
Family: incert. fam.
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darras, Derycke, Blieck & Vachard, 2008
Genus: Melanodus Darras, Derycke, Blieck & Vachard, 2008
Family: Copodontidae Davis, 1883
Order: Copodontiformes
Subclass: Holocephali

Original description species: Minikh, 1995
Genus: Menaspis Ewald, 1848
Family: Menaspidae Woodward, 1891
Order: Menaspiformes
Subclass: Holocephali

Synonyms: Jaekelotodus glueckmani
Original description species: Zhelezko, 1994
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zhelezko, 1994
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zhelezko, 1994
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cicimurri, Ebersole & Martin, 2020
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mennerotodus cf. parmleyi
Original description species: Cicimurri, Ebersole & Martin, 2020
Genus: Mennerotodus Zhelezko, 1994
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Raja praealba
Original description species: (Arambourg, 1952)
Genus: Merabatis Cappetta, 1983
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Meridiania cf. convexa
Original description species: Case, 1994
Genus: Meridiania Case, 1994
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Engelbrecht, Mörs, Reguero & Kriwet, 2017
Genus: Meridiogaleus Engelbrecht, Mörs, Reguero & Kriwet, 2017
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus butleri, Hybodus cf. butleri
Original description species: (Thurmond, 1971)
Genus: Meristodonoides Underwood & Cumbaa, 2010
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus montanensis, Meristodonoides cf. montanensis
Original description species: (Case, 1978)
Genus: Meristodonoides Underwood & Cumbaa, 2010
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cicimurri, Ciampaglio & Runyon, 2014
Genus: Meristodonoides Underwood & Cumbaa, 2010
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus novojerseyensis
Original description species: (Case & Cappetta, 2004)
Genus: Meristodonoides Underwood & Cumbaa, 2010
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus rajkovichi, Meristodonoides cf. rajkovichi
Original description species: (Case, 2001)
Genus: Meristodonoides Underwood & Cumbaa, 2010
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Engelbrecht, Mors, Reguero & Kriwet, 2019
Genus: Mesetaraja Engelbrecht, Mors, Reguero & Kriwet, 2019
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Gorjanovic-Kramberger, 1885
Genus: Mesiteia Kramberger, 1885
Family: Mesiteiidae Pfeil, 2021
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Leidy, 1855
Genus: Mesobatis Leidy, 1877
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: St. John & Worthen, 1875
Genus: Mesodmodus St. John & Worthen, 1875
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: St. John & Worthen, 1875
Genus: Mesodmodus St. John & Worthen, 1875
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Derycke-Khatir, 2005
Genus: Mesodmodus St. John & Worthen, 1875
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: St. John & Worthen, 1875
Genus: Mesodmodus St. John & Worthen, 1875
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Woodward, 1889
Genus: Mesolophodus Woodward, 1889
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali

Synonyms: Polyrhizodus rossicus
Original description species: (Inostranzew, 1888)
Genus: Metaxyacanthus Obruchev, 1964
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali

Synonyms: Myriacanthus bollensis
Original description species: (Fraas, 1910)
Genus: Metopacanthus Zittel, 1887
Family: Myriacanthidae Woodward, 1889
Suborder: Myriacanthoidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: (Agassiz, 1837)
Genus: Metopacanthus Zittel, 1887
Family: Myriacanthidae Woodward, 1889
Suborder: Myriacanthoidei
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Microbatis cf. sabatieri
Original description species: Cappetta, 1993
Genus: Microbatis Cappetta, 1993
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias cf. saskatchewanensis, Carcharias saskatchewanensis, Odontaspis applegatei, Odontaspis saskatchewanensis
Original description species: (Case, Tokaryk & Baird, 1990)
Genus: Microcarcharias Guinot & Carrillo-Briceño, 2018
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siverson, 1993
Genus: Microetmopterus Siverson, 1993
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hodnett & Elliott, 2018
Genus: Microklomax Hodnett & Elliott, 2018
Family: Protacrodontidae Cappetta, Duffin & Zidek, 1993
Superfamily: Protacrodontoidea
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ganopristis senta, Micropristis sentus, Sclerorhynchus sentus, Sclerorhynchus solomonis
Original description species: (Hay, 1903)
Genus: Micropristis Cappetta, 1980
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus burnhamensis
Original description species: (Cappetta, 1976)
Genus: Microscyliorhinus Case, 1994
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Case, 1994
Genus: Microscyliorhinus Case, 1994
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Noubhani & Cappetta, 1997
Genus: Microscyliorhinus Case, 1994
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Delsate, 2003
Genus: Microtoxodus Delsate, 2003
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Sambou, Hautier, Sarr, Tabuce, Lihoreau, Thiam, Lebrun, Martin, Cappetta & Adnet, 2020
Genus: Microtriftis Sambou, Hautier, Sarr, Tabuce, Lihoreau, Thiam, Lebrun, Martin, Cappetta & Adnet, 2020
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Deraniyagala, 1969
Genus: Miosynechodus Deraniyagala, 1969
Family: Palaeospinacidae Regan, 1906
Order: Synechodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Case & Cappetta, 1990
Genus: Misrichthys Case & Cappetta, 1990
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna lineata, Lamna (Odontaspis) lineata, Mitsukurina cf. lineata, Odontaspis lineata, Odontaspis lineata minor, Scapanorhynchus lineatus
Original description species: (Probst, 1879)
Genus: Mitsukurina Jordan, 1898
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias maslinensis, Mitsukurina aff. maslinensis, Mitsukurina cf. maslinensis
Original description species: (Pledge, 1967)
Genus: Mitsukurina Jordan, 1898
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mitsukurina aff. owstoni-f, Mitsukurina cf. owstoni-f
Original description species: Jordan, 1898
Genus: Mitsukurina Jordan, 1898
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Mitsukurina Jordan, 1898
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Jonet, 1976
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Manta fragilis, Paramobula fragilis
Original description species: (Cappetta, 1970)
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Manta hynei
Original description species: (Bourdon, 1999)
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mobula cf. hypostoma-f
Original description species: (Bancroft, 1831)
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Laurito Mora, 1999
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mobula aff. loupianensis, Mobula cf. loupianensis
Original description species: Cappetta, 1970
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Manta melanyae
Original description species: (Case, 1980)
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mobula cf. munkiana-f
Original description species: Notarbartolo Di Sciara, 1987
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1970
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Manta sp-f
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Lloyd, 1908)
Genus: Mobula Rafinesque, 1810
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Ward, 2011
Genus: Moerigaleus Underwood & Ward, 2011
Family: Hemigaleidae Hasse, 1878
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Karatajute-Talimaa & Novitskaya, 1990
Genus: Mongolepis Karatajute-Talimaa & Novitskaya, 1990
Family: Mongolepididae Karatajute-Talimaa & Novitskaya, 1990
Order: Mongolepidida

Synonyms: Cladoselache clarki
Original description species: Claypole, 1893
Genus: Monocladodus Claypole, 1893
Family: Cladoselachidae Dean, 1894
Order: Symmoriiformes
Subclass: Holocephali

Original description species: (Jain, 1980)
Genus: Mooreodontus Hampe & Schneider, 2010
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Original description species: Bhat, Ray & Datta, 2018
Genus: Mooreodontus Hampe & Schneider, 2010
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Synonyms: Diplodus moorei, Dittodus moorei, Triodus moorei, Xenacanthus moorei
Original description species: (Woodward, 1889)
Genus: Mooreodontus Hampe & Schneider, 2010
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Synonyms: Pleuracanthus parvidens, Xenacanthus parvidens
Original description species: (Woodward, 1908)
Genus: Mooreodontus Hampe & Schneider, 2010
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii

Synonyms: Mooreyella typicalis, Moreyella aviculiformis, Moreyella cf. typicalis, Moreyella trilobata
Original description species: Gunnell, 1933
Genus: Moreyella Gunnell, 1933
Subclass: Elasmobranchii

Original description species: Popov & Shapovalov, 2021
Genus: Moskovirhynchus Popov & Shapovalov, 2021
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Cuny, Rieppel & Sander, 2001
Genus: Mucrovenator Cuny, Rieppel & Sander, 2001
Family: incert. fam.
Order: Synechodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mukdahanodus aff. trisivakulii
Original description species: Cuny, Cavin & Suteethorn, 2008
Genus: Mukdahanodus Cuny, Cavin & Suteethorn, 2008
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cloquet, 1819
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Baut & Genault, 1995
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Gill, 1864
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Gill, 1863)
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mustelus aff. vanderhoefti, Mustelus cf. vanderhoefti
Original description species: Herman, 1982
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Mustelus aff. whitei, Mustelus cf. whitei
Original description species: Cappetta, 1976
Genus: Mustelus Linck, 1790
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Otero, 2019
Genus: Myledaphus Cope, 1876
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cope, 1876
Genus: Myledaphus Cope, 1876
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cook, Newbrey, Brinkman & Kirkland, 2014
Genus: Myledaphus Cope, 1876
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Nessov in Nessov & Udovitshenko, 1986
Genus: Myledaphus Cope, 1876
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Chapman & Cudmore, 1924
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Meschinelli, 1924
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Davis, 1888
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates americanus
Original description species: (Bravard, 1858)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates angustidens, Myliobatis aff. angustidens
Original description species: (Sismonda, 1849)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis aff. aquila-f, Myliobatis cf. aquila-f
Original description species: (Linnaeus, 1758)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates arcuatus
Original description species: Davis, 1888
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Issel, 1877)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1943
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates bisulcus
Original description species: (Marsh, 1870)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: White, 1926
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis californicus-f, Myliobatis cf. californica-f
Original description species: Gill, 1865
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Philippi, 1892
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1959
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates dimorphus
Original description species: (Delfortrie, 1871)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Leriche, 1913
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Stromer, 1905
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mendiola, 1999
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Leidy, 1876)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Aulacanthus faujasii, Myliobatis faujasi, Myliobatis (Ptychacanthus) faujasi, Ptychacanthus faujasii, Ptychopleurus faujasii
Original description species: (Agassiz, 1837)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hoganson, Erickson & Holland, 2019
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Stromer, 1905
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates frangens
Original description species: Eastman, 1904
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Lesueur, 1824
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates funiculatus
Original description species: (Delfortrie, 1871)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates gigas
Original description species: Cope, 1867
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates goniopleurus, Myliobatis striatus goniopleurus
Original description species: (Agassiz, 1843)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Garman, 1885
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Issel, 1877)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates haueri, Myliobatis hauerii
Original description species: (Penecke, 1884)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates holmesii, Myliobatis holmesi
Original description species: (Gibbes, 1849)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis cf. intermedius
Original description species: Darteville & Casier, 1943
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Fowler, 1911
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis la gaillardei
Original description species: Thomas in Priem, 1904
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates leidyi, Myliobates serratus
Original description species: (Hay, 1899)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates leognanensis
Original description species: (Delfortrie, 1871)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1959
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bauzá & Gomez Pallerola, 1982
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Leidy, 1876)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Aetobatus merriami, Myliobates merriani, Myliobatis merriani
Original description species: Jordan & Beal, 1913
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates micropleurus
Original description species: (Agassiz, 1835)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates microrhizus, Myliobates microrhyzus
Original description species: (Delfortrie, 1871)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Böhm, 1942
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Stromer, 1905
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1986
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Chapman & Pritchard, 1907
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Leidy, 1876)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1959
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1943
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates pachyodon
Original description species: Cope, 1867
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Fowler, 1911
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates pentoni, Myliobatis aff. pentoni, Myliobatis aff. pentonis
Original description species: Woodward, 1893
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates placentinus
Original description species: (Carraroli, 1897)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Davis, 1888
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Arambourg, 1952
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ruocco, Lucifora, De Astarloa, Mabragaña & Delpiani, 2012
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates rivierei
Original description species: (Sauvage, 1878)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates rugosus
Original description species: Leidy, 1855
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates salentinus
Original description species: (Botti, 1877)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mendiola, 1999
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hatai, Murata & Masuda, 1965
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis cf. serratus
Original description species: Meyer, 1843
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Holorhinus sp-f
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates stockesii, Myliobates stokesii
Original description species: (Agassiz, 1843)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Issel, 1877)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates superbus
Original description species: Hantken, 1875
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hector, 1877
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates testae
Original description species: Philippi, 1846
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mishra, 1980
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates cf. toliapicus, Myliobates nitidus, Myliobates toliapicus, Myliobatides toliapicus, Myliobatis cf. latidens, Myliobatis cf. toliapicus, Myliobatis latidens, Myliobatis nitidus
Original description species: (Agassiz, 1843)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates transversalis
Original description species: (Gibbes, 1849)
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates tumidens
Original description species: Woodward, 1889
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobatis undulata
Original description species: Chaffee, 1939
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Tzankov & Datchev, 1966
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Myliobates vicomicanus
Original description species: Cope, 1867
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: White, 1934
Genus: Myliobatis Cuvier (Ex Dumeril), 1816
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Myliobatus
Family: Myliobatidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Noubhani & Cappetta, 1997
Genus: Myliodasyatis Noubhani & Cappetta, 1997
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ischyodus orthorhinus, Prognathodus güntheri
Original description species: Agassiz, 1837
Genus: Myriacanthus Agassiz, 1836
Family: Myriacanthidae Woodward, 1889
Suborder: Myriacanthoidei
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Chimaera (Ischyodon) johnsonii, Myriacanthus retrorsus
Original description species: Agassiz, 1836
Genus: Myriacanthus Agassiz, 1836
Family: Myriacanthidae Woodward, 1889
Suborder: Myriacanthoidei
Order: Chimaeriformes
Subclass: Holocephali