Holotype of ;'Y. boutilieri and referred specimen (holotype of "S." meretrix)
Four skulls assigned to Yvridiosuchus at the OUMNH; a skull assigned to Y. boutilieri (A), the holotype skull of "Steneosaurus" meretrix (B), a jaw assigned to Y. boutilieri (C) and the holotype skull of Y. boutilieri (D)
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Clade:
Archosauria
Clade:
Pseudosuchia
Clade:
Crocodylomorpha
Clade:
Crocodyliformes
Suborder:
†Thalattosuchia
Family:
†Machimosauridae
Tribe:
†Machimosaurini
Genus:
†Yvridiosuchus Johnson et al., 2019
Species:
†Y. boutilieri
Binomial name
†Yvridiosuchus boutilieri
(Eudes-Deslongchamps, 1868)
Synonyms
Steneosaurus boutilieri Eudes-Deslongchamps, 1868
Teleosaurus brevidens Philips, 1871
"Steneosaurus" meretrix Phizackerley, 1951
Yvridiosuchus (meaning "hybrid crocodile") is an extinct genus of machimosaurid crocodyliform from the Middle Jurassic (Bathonian) Cornbrash Formation of England and the Sommet de la Grande Oolithe, Calvados, France. The type and only known species is Y. boutilieri. Yvridiosuchus is the oldest known member of Machimosaurini, a clade of large, predatory machimosaurids with powerful jaws and teeth. Yvridiosuchus was named on the basis that it has characteristics of both earlier machimosaurids and the derived machimosaurins, such as conical, blunt teeth. It co-existed with the more generalist machimosaurid Deslongchampsina.[1]
^Michela M. Johnson; Mark T. Young; Stephen L. Brusatte (2019). "Re-description of two contemporaneous mesorostrine teleosauroids (Crocodylomorpha: Thalattosuchia) from the Bathonian of England and insights into the early evolution of Machimosaurini". Zoological Journal of the Linnean Society. Advanced online publication (2): 449–482. doi:10.1093/zoolinnean/zlz037. hdl:1842/36656.
Yvridiosuchus is the oldest known member of Machimosaurini, a clade of large, predatory machimosaurids with powerful jaws and teeth. Yvridiosuchus was...
1867. Vignaud (1995) considered S. stephani to be a minor synonym of Yvridiosuchus boutilieri (then still in the genus Steneosaurus), but Johnson (2019)...
been discovered in this formation. The teleosaurid crocodyliformes Yvridiosuchus, Seldsienean, Clovesuurdameredeor and Deslongchampsina are known from...
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