Caodeyao

Caodeyao Temporal range: Lopingian? PreꞒ Ꞓ O S D C P T J K Pg N
Holotype skull seen from the left and right sides
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Clade:	†Therocephalia
Clade:	†Eutherocephalia
Genus:	†Caodeyao Liu & Abdala, 2020
Species:	†C. liuyufengi
Binomial name
†Caodeyao liuyufengi Liu & Abdala, 2020

Caodeyao is a genus of therocephalian that lived in what is now China during the late Permian. It was found in the Naobaogou Formation. It contains one species, Caodeyao liuyufengi, named in 2020 by Jun Liu and Fernando Abdala. The authors found that its closest relative is Purlovia from Russia, forming with it an exclusively Laurasian clade.^[1]

The holotype and only specimen consisted of a partial skull and a humerus. It was a medium sized animal with a 14 cm long skull. It had a short but high snout, and wide temporal openings.^[1]

Etymology

The genus name refers to the village of Caodeyao, while the specific epithet refers to Liu Yu-Feng, the technician and driver who made significant contributions to the Daqingshan field trips.^[1]

Gallery

Skull (dorsal view)

Skull (ventral view)

Skull with mandibles

Skull, posterior view (A-B). Occiput, posterior view (C-D) Occiput, anterior view (E-F) Braincase (G-M)

Left humerus in (A) ventral, (B) anterolateral, (C) dorsal, and (D) posteromedial views.

Major consensus tree of Therocephalia (Liu and Abdala, 2020)

References

1. Liu, J.; Abdala, F. (2020). "The tetrapod fauna of the upper Permian Naobaogou Formation of China: 5. Caodeyao liuyufengi gen. et sp. nov., a new peculiar therocephalian". PeerJ. 8: e9160. doi:10.7717/peerj.9160. ISSN 2167-8359. PMC 7261480.