Pachygenys
| Pachygenys Temporal range: Early Cretaceous, 106.9 Ma | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Infraorder: | Scincomorpha |
| Genus: | †Pachygenys Gao and Cheng, 1999 |
| Type species | |
| Pachygenys thlastesa Gao and Cheng, 1999 | |
| Species | |
|
†P.thlastesa Gao and Cheng, 1999 †P.adachii Ikeda, Ota and Saegusa, 2014 | |
Pachygenys ("thick jaw") is a genus of scincomorphan lepidosaur from the Lower Cretaceous of Japan. Its name is composed of the Greek words παχυς pachys ("thick") and γένυς génys ("jaw").[1]
Description
Pachygenys has a few defining characters, of which include a distinct foreshortening of the dentary tooth row and a reduced amount of dentary teeth. P.adachii differs from P.thlastesa in a few aspects; P.adachii has a shorter tooth row than P.thlastesa, as well as anterior and middle teeth that have uncuspid crowns and posterior teeth with simple, uncuspid conical crowns.[1]
References
- 1 2 Ikeda, Tadahiro; Oti, Hidetoshi (2014). "A new fossil lizard from the Lower Cretaceous Sasayama Group of Hyogo prefecture, western Honshu, Japan". Society of Vertebrate Palaeontology. doi:10.1080/02724634.2014.885032.
This article is issued from Wikipedia - version of the 2/7/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.