Biology:Orientalosuchina

Short description: Extinct clade of crocodilians

Orientalosuchina Temporal range: Paleocene-Eocene, 65–35 Ma PreЄ Є O S D C P T J K Pg N
Partial skull and jaw of Protoalligator huiningensis, on display at the Paleozoological Museum of China
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauromorpha
Clade:	Archosauriformes
Order:	Crocodilia
Superfamily:	Alligatoroidea
Clade:	Globidonta
Clade:	†Orientalosuchina Massonne et al., 2019
Genera
†Dongnanosuchus †Eoalligator †Eurycephalosuchus †Jiangxisuchus? †Krabisuchus †Orientalosuchus †Protoalligator

Orientalosuchina is an extinct clade of alligatoroid crocodylians from South and East Asia that lived during the Paleocene and Eocene.

The clade was named as the result of a 2019 study by Massonne et al. that included several extinct alligatoroid taxa from Asia and found that they were all closely related and together formed a monophyletic clade as basal members of Alligatoroidea, as shown in the cladogram below:

Alligatoroidea	Diplocynodontinae†   Globidonta   Leidyosuchus†       Deinosuchus†         Navajosuchus†     Ceratosuchus†       Stangerochampsa†       Brachychampsa sealeyi†       Brachychampsa montana†   Orientalosuchina†   Eoalligator†     Jiangxisuchus†     Protoalligator†       Orientalosuchus†     Krabisuchus†               Alligatoridae   Alligatorinae     Caimaninae

Some studies have disputed this placement of Jiangxisuchus within Orientalosuchina as an alligatoroid, instead recovering Jiangxisuchus as a basal member of Crocodyloidea.

References

Wikidata ☰ Q108293079 entry