Pachygenys

Pachygenys; Temporal range: Early Cretaceous, 106.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
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 lizard 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[]

^ ^a ^b 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. S2CID 84568156.

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[ikedaetal2014-1] 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. S2CID 84568156.

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