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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ichthyosauromorpha
Taxonomy
Ichthyosauromorpha was named by Motani et al. (2015).
It was assigned to Diapsida by Motani et al. (2015).
It was assigned to Diapsida by Motani et al. (2015).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Ichthyosauromorpha Motani et al. p. 485 |
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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. †Ichthyosauromorpha Motani et al. 2015
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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. †Ichthyosauria de Blainville 1835 [ichthyosaur]
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Unr. †Baracromia Fischer et al. 2013
G. †Cetarthrosaurus Seeley 1873
G. †Ghuizhouichthyosaurus Cao and Luo 2000
Fm. †Grippiidae Wiman 1929
G. †Guanlingichthyosaurus Yin et al. 2000
Unr. †Hueneosauria Maisch and Matzke 2000
G. †Isfjordosaurus Motani 1999
Superfm. †Latipinnatoidea Huene 1923
Subor. †Mixosauria Motani 1999
G. †Nanchangasaurus Wang 1959
Fm. †Omphalosauridae Merriam 1906
Fm. †Parvinatatoridae McGowan and Motani 2003
Unr. †Parvipelvia Motani 1999
Fm. †Proteosauridae Hay 1902
Fm. †Quasianosteosauridae Maisch and Matzke 2003
Superfm. †Shastosauroidea Tatarinov 1964
Fm. †Thaisauridae Maisch 2010
Unr. †Thunnosauria Motani 1999
Fm. †Utatsusauridae McGowan and Motani 2003
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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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Motani et al. 2015 | The 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. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Olenekian to the top of the Cenomanian or 251.20000 to 93.90000 Ma
Collections (535 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Triassic | Norway (Svalbard) | Omphalosaurus merriami (140928) | |
| Griesbachian - Smithian | Canada (British Columbia) | Utatsusaurus sp. (196982) | |
| Triassic | USA (California) | Leptocheirus zitteli (149577) Shastasaurus alexandrae, Shastasaurus osmonti (153314) | |
| Triassic | USA (Nevada) | Cymbospondylus petrinus, Chonespondylus grandis (101860) | |
| Triassic | Germany (Aargau) | Mixosaurus helveticus (214578) | |
| Triassic | Germany (Bavaria) | Mixosaurus intermedius (214577) | |
| Smithian | Canada (British Columbia) | Grippia longirostris (105082) Pessosaurus sp., Phalarodon fraasi, Mixosaurus nordenskioeldii (85452) Phalarodon nordenskioeldii (152277) Phalarodon nordenskioeldii, Grippia longirostris (105083) Utatsusaurus sp. (127262) | |
| Smithian | Russian Federation | Ichthyopterygia indet. (95314) | |
| Smithian - Spathian | USA (Idaho) | Cymbospondylus sp. (90338) | |
| Spathian | Russian Federation | Ichthyopterygia indet. (127746) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Early/Lower Cenomanian | United Kingdom | Sisteronia seeleyi (166721) | |
| Early/Lower Cenomanian | France (Normandy) | Platypterygius sp. (142837) | |
| Early/Lower Cenomanian | Russian Federation (Saratov) | Ichthyosauria indet. (92403) | |
| Early/Lower Cenomanian | India (Tamil Nadu) | Platypterygius indicus (110178) | |
| Early/Lower Cenomanian | USA (Texas) | Ichthyosauria indet. (106276) Platypterygius sp. (120507) | |
| Middle Cenomanian | USA (Wyoming) | Myopterygius petersoni (105791) | |
| Middle Cenomanian | Russian Federation (Volgograd) | Ichthyosauria indet. (92399) | |
| Middle Cenomanian | India | Platypterygius sp. (214382) | |
| Middle Cenomanian | Russian Federation (Saratov) | Platypterygius bannovkensis, Ichthyosauria indet. (138038) | |
| Middle Cenomanian - Late/Upper Cenomanian | Germany (Bavaria) | Platypterygius sp. (214381) | |