Railway Grade (Cretaceous of Canada)

Also known as Socognathus type locality

Where: Alberta, Canada (50.7° N, 111.5° W: paleocoordinates 58.0° N, 76.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Oldman Formation (Belly River Group), Judithian (83.5 - 70.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: University of Alberta Vertebrate Paleontology Laboratory

Primary reference: K. -Q. Gao and R. C. Fox. 1991. New teiid lizards from the Upper Cretaceous Oldman Formation (Judithian) of southeastern Alberta, Canada, with a review of the Cretaceous record of teiids. Annals of Carnegie Museum 60(2):145-162 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116537: authorized by Roger Benson, entered by Roger Benson on 08.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Teiidae
Glyptogenys ornata Gao and Fox 1991 squamates
UALVP 29758 (dentary)
 Squamata -
 Squamata - Helodermatidae
Helodermatidae indet. Gray 1837 squamates
RTMP 88.36.212 (frontals), 85.58.58 (parietals)
 Squamata - Anguidae
Odaxosaurus priscus Gao and Fox 1996 squamates
UALVP 29891 (maxilla)
 Squamata - Chamopsiidae
Socognathus unicuspis n. gen. n. sp.
Socognathus unicuspis n. gen. n. sp. Gao and Fox 1991 lizard
UALVP 29739 (holotype)