Pachygenys

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]

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

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. 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. 35: e885032. doi:10.1080/02724634.2014.885032.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.