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Ichthyosauriformes

Reptilia

Synonymy list
YearName and author
2015Ichthyosauriformes Motani et al. p. 485
2017Ichthyosauriformes Moon
2019Ichthyosauriformes Moon p. 143

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Ichthyosauromorpha
—Ichthyosauriformes
—Ichthyosauriformes

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. †Ichthyosauriformes Motani et al. 2015
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Unr. †Ichthyopterygia Owen 1840
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Unr. †Eoichthyosauria Motani 1999
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Unr. †Grippidia Wiman 1929
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G. †Gulosaurus Cuthbertson et al. 2013
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†Gulosaurus helmi Cuthbertson et al. 2013
Unr. †Ichthyosauria de Blainville 1835 [ichthyosaur]
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Unr. †Baracromia Fischer et al. 2013
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G. †Chacaicosaurus Fernandez 1994
Fm. †Ophthalmosauridae Andrews 1910
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Invalid names: Baptanodontidae Marsh 1879 [synonym]
G. †Cetarthrosaurus Seeley 1873
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†Cetarthrosaurus walkeri Seeley 1869
G. †Ghuizhouichthyosaurus Cao and Luo 2000
Fm. †Grippiidae Wiman 1929
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G. †Chaohusaurus Young and Dong 1972
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Invalid names: Anhuisaurus Chen 1985 [synonym], Anhuisaurus Chen 1985 [synonym], Chensaurus Mazin Suteethora et al. 1991 [synonym], Chensaurus Mazin Suteethora et al. 1991 [synonym]
G. †Grippia Wiman 1929
G. †Guanlingichthyosaurus Yin et al. 2000
Unr. †Hueneosauria Maisch and Matzke 2000
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Subor. †Longipinnati Huene 1948
Unr. †Merriamosauria Motani 1999
Fm. †Mixosauridae Baur 1887
Invalid names: Merriamosauriformes McGowan and Motani 2003 [empty]
G. †Isfjordosaurus Motani 1999
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†Isfjordosaurus minor Motani 1999
Superfm. †Latipinnatoidea Huene 1923
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Invalid names: Eurypterygiidae Jaekel 1904 [empty]
Subor. †Mixosauria Motani 1999
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Fm. †Wimaniidae Maisch 2010
G. †Nanchangasaurus Wang 1959
Fm. †Omphalosauridae Merriam 1906
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G. †Chaohusaurus Young and Dong 1972
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Invalid names: Anhuisaurus Chen 1985 [synonym], Anhuisaurus Chen 1985 [synonym], Chensaurus Mazin Suteethora et al. 1991 [synonym], Chensaurus Mazin Suteethora et al. 1991 [synonym]
G. †Omphalosaurus Merriam 1906
G. †Tholodus Von Meyer 1851
G. †Xinminosaurus Jiang et al. 2008
Fm. †Parvinatatoridae McGowan and Motani 2003
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G. †Parvinatator Nicholls and Brinkman 1995
Unr. †Parvipelvia Motani 1999
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G. †Hudsonelpidia McGowan 1995
G. †Macgowania Motani 1999
Unr. †Neoichthyosauria Sander 2000
G. †Suevoleviathan Maisch 1998
Invalid names: Hudsonelpidiidae McGowan and Motani 2003 [empty], Leptonectoidea McGowan and Motani 2003 [empty], Macgowaniidae McGowan and Motani 2003 [empty], Temnodontosauroidea McGowan and Motani 2003 [empty]
Fm. †Proteosauridae Hay 1902
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G. †Proteosaurus Home 1819
Fm. †Quasianosteosauridae Maisch and Matzke 2003
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G. †Quasianosteosaurus Maisch and Matzke 2003
Superfm. †Shastosauroidea Tatarinov 1964
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Invalid names: Undorosauridae Efimov 1999 [empty]
Fm. †Thaisauridae Maisch 2010
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G. †Thaisaurus Mazin et al. 1991
Unr. †Thunnosauria Motani 1999
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Fm. †Ichthyosauridae Bonaparte 1841
G. †Malawania Fischer et al. 2013
G. †Stenopterygius Jaekel 1904
Invalid names: Stenopterygiidae Kühn 1934 [empty]
Fm. †Utatsusauridae McGowan and Motani 2003
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G. †Utatsusaurus Shikama and Kamei 1978
Invalid names: Ichthyosauroidea Fitzinger 1826 [empty], Ichthyosaurus australis Hector 1878 [nomen dubium], Ichthyosaurus polyptychodon Koken 1883 [nomen dubium], Ichthyosaurus strombecki Meyer 1862 [nomen dubium], Longipinnatoidea Huene 1923 [empty], Pessosaurus Wiman 1910 [nomen dubium], Rachitrema Sauvage 1883 [nomen dubium], Sphaerodontes Torre and Cuervo 1939 [nomen dubium], Stenopterygius grandis Cabrera 1939 [nomen dubium]
Or. †Heteropinnatoidea Appleby 1979
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Invalid names: Leptopterygiidae Kuhn 1934 [empty], Protoichthyosauridae Appleby 1979 [empty]
Invalid names: Ekbainacanthus Yakowlew 1902 [nomen dubium], Euichthyopterygia Motani 1999 [empty], Grippidia Wiman 1933 [empty], Grippoidea Ji et al. 2016 [empty], Ichthyoterus Rouiellier 1847 [nomen dubium], Latipinnatoidea Huene 1948 [empty], Macropterygius Huene 1922 [nomen dubium], Mixosauroidea Appleby 1979 [empty], Omphalosaurus merriami Maisch 2010 [nomen dubium], Pachygonosaurus von Huene 1916 [nomen dubium], Perrinosaurus Merriam 1938 [nomen dubium], Rotundopteryx Maisch and Matzke 2000 [nomen dubium], Spitsbergenosaurus Mazin 1981 [nomen dubium]
Unr. †Nasorostra Jiang et al. 2016
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G. †Cartorhynchus Motani et al. 2015
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†Cartorhynchus lenticarpus Motani et al. 2015
G. †Sclerocormus Jiang et al. 2016
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†Sclerocormus parviceps Jiang et al. 2016
Diagnosis
ReferenceDiagnosis
R. Motani et al. 2015All ichthyosauromorphs more closely related to Ichthyosaurus communis than Hupehsuchus nanchangensis. Nasal extending anteriorly, well beyond external naris; scleral ring large, filling orbit; snout constricted in dorsal view; converging digits with limited interdigital space.
B. C. Moon 2017The last common ancestor of Hupehsuchus nanchangensis and Ichthyosaurus communis, and all of its descendants [node-based] (Motani et al. 2015).
B. C. Moon 2019The last common ancestor of Hupehsuchus nanchangensis and Ichthyosaurus communis, and all of its descendants [node-based] (Motani et al. 2015).