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Ichthyosaurus

Reptilia - Ichthyosauridae

Sister genera
Tibetosaurus

View classification of included taxa

Synonyms
Synonymy list
YearName and author
1818Ichthyosaurus Koenig
1819Proteosaurus Home p. 212
1822Ichthyosaurus Parkinson p. 296
1825Ichthyosaurus latifrons Konig figs. Pl. 19, fig. 250
1826Ichthyosaurus Fitzinger p. 9
1830Gryphus Wagler p. 60
1840Ichthyosaurus Owen p. 86
1840Ichthyosaurus latifrons Owen p. 122
1840Ichthyosaurus thyreospondylus Owen p. 124
1840Ichthyosaurus trigonus Owen p. 124
1845Ichthyosaurus Meyer p. 281
1849Ichthyosaurus d'Orbigny p. 209
1851Ichthyosaurus latifrons Mantell p. 385
1851Ichthyosaurus posthumus Wagner p. 702
1858Ichthyosaurus zollerianus Quenstedt p. 371
1861Ichthyosaurus Owen p. 220
1861Ichthyosaurus normanniae Valenciennes p. 101
1861Ichthyosaurus cuvieri Valenciennes p. 273
1869Ichthyosaurus chalarodeirus Seeley p. 106
1871Ichthyosaurus aequalis Phillips
1871Ichthyosaurus dilatatus Phillips
1871Ichthyosaurus thyreospondylus Phillips pp. 307, 337
1871Ichthyosaurus advena Phillips p. 339
1871Ichthyosaurus ovalis Phillips p. 339
1881Ichthyosaurus brachyspondylus Owen p. 127
1883Ichthyosaurus hildesiensis Koken
1885Ichthyosaurus lacunosae Quenstedt
1886Ichthyosaurus Günther p. 442
1889Ichthyosaurus Lydekker p. 12
1889Ichthyosaurus trigonus Lydekker p. 22 figs. 12-14
1889Ichthyosaurus ovalis Lydekker p. 29 fig. 15
1889Ichthyosaurus latifrons Lydekker p. 89 figs. 31-33
1893Ichthyosaurus bodenbenderi Dames p. 23 figs. Pl. 1 (1, 2)
1895Ichthyosaurus immanis Phillipi
1904Eurypterygius Jaekel
1908Ichthyosaurus Merriam p. 88
1909Ichthyosaurus steleodon Bogolubow
1942Ichthyosaurus franciscanus Camp p. 362 figs. 1, 2A
1942Ichthyosaurus californicus Camp p. 367 figs. 3, 4
1960Macropterygius trigonus Delair p. 64
1960Macropterygius dilatatus Delair p. 65
1960Macropterygius ovalis Delair p. 65
1960Macropterygius thyreospondylus Delair p. 66
1960Leptopterygius latifrons Delair p. 73
1967Ichthyosaurus Appleby p. 137
1969Ichthyosaurus hygrodeirus Seeley p. 106
1974Ichthyosaurus McGowan p. 6
1979Protoichthyosaurus prosostealis Appleby p. 942
1982Tibetosaurus Dong
1982Tibetosaurus tingjiensis Young et al.
1988Ichthyosaurus Carroll
1994Macropterygius trigonus Frickhinger p. 249 fig. 514
1999Ichthyosaurus Motani p. 484
2000Ichthyosaurus Maisch and Matzke pp. 74, 98
2000Ichthyosaurus Sander
2002Ichthyosaurus Sepkoski, Jr.
2008Ichthyosaurus Maisch et al.
2010Ichthyosaurus Maisch
2011Ichthyosaurus Fischer et al.
2012Ichthyosaurus Bennett et al.
2012Ichthyosaurus Fischer et al.
2013Ichthyosaurus Fischer et al.
2014Ichthyosaurus Arkhangelsky and Zverkov
2015Ichthyosaurus Brusatte et al.
2015Ichthyosaurus Lomax and Massare
2018Ichthyosaurus Massare and Lomax

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Ichthyosauromorpha
Ichthyosauriformes
Ichthyopterygia(Owen 1840)
Eoichthyosauria
Ichthyosauria(de Blainville 1835)
Parvipelvia
NeoichthyosauriaSander 2000
Thunnosauria
familyIchthyosauridaeBonaparte 1841
genusIchthyosaurusKoenig 1818

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.

Diagnosis
ReferenceDiagnosis
M. W. Maisch and A. T. Matzke 2000"Moderately large to large ichthyosaurs, skull length between 30 and 60 cm, quadratojugal with long processus quadratus, humuerus robust and short, forefin with four primary digits and postaxial accessories, fin elements form a completely closed polygonal mosaic pattern in the fore- and hindfin, except the distal tips, coracoid with anterior and posterior notches, about 44 presacral vertebrae, neural spines of thoracal vertebral column long."