Where: Alberta, Canada (51.4° N, 112.7° W: paleocoordinates 59.1° N, 78.7° W)

• coordinate stated in text

When: Horseshoe Canyon Formation, Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: RTMP collection

Primary reference: K. -Q. Gao and R. C. Fox. 1998. New choristoderes (Reptilia: Diapsida) from the Upper Cretaceous and Palaeocene, Alberta and Saskatchewan, Canada, a phylogenetic relationships of Choristodera. Zoological Journal of the Linnean Society 124:303-353 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117924: authorized by Roger Benson, entered by Roger Benson on 28.09.2011

Creative Commons license: CC BY (attribution)