Phrynosomimusis an extinctgenusofiguanianlizardfrom theLate CretaceousofMongoliabelonging to the extinct familyPriscagamidae.Thetype speciesPhrynosomimus asperwas named in 1996. Fossils have been found in theBarun GoyotandDjadochtaformations and include several complete skulls.[1]Phrynosomimushas a short, triangular skull with bony spikes projecting from the back, stemming from thesquamosalandparietal bones.These spikes give it a similar appearance to the modernhorned lizardPhrynosomaand inspire its name, which means "Phrynosomamimic. "Like other priscagamids it has anacrodontdentition, meaning that its teeth grow from the margins of the jaws rather than their inner surfaces, as is the case for thepleurodontdentitions of most lizards.[2]

Phrynosomimus
Temporal range:Santonian-Campanian
~84.9–70.6Ma
Scientific classificationEdit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Family: Priscagamidae
Genus: Phrynosomimus
Alifanov,1996
Type species
Phrynosomimus asper
Alifanov, 1996

References

edit
  1. ^PhrynosomimusatFossilworks.org
  2. ^Gao, Keqin; Norell, Mark (2000). "Taxonomic composition and systematics of late Cretaceous lizard assemblages from Ukhaa Tolgod and adjacent localities, Mongolian Gobi Desert".Bulletin of the American Museum of Natural History(249): 1–117.hdl:2246/1596.