Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Ichthyosauromorpha

Reptilia -

Taxonomy

Sister taxa
Ichthyosauriformes

View classification of included taxa

Synonymy list
YearName and author
2015Ichthyosauromorpha Motani et al. p. 485

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
RankNameAuthor
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Ichthyosauromorpha
Ichthyosauromorpha

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
R. Motani et al. 2015The last common ancestor of Ichthyosaurus communis and Hupehsuchus nanchangensis, and all its descendants. Anterior flanges on humerus and radius present; ulna distal width equal to or greater than proximal width; forelimb longer than or almost equal to hindlimb; manus length at least about three-quarters the length of the stylopodium and zeugopodium combined; fibula extending further post-axially than femur; transverse process of neural arch extremely short or absent.