Also known as Champsosaurus tenuis type locality

Where: Billings County, North Dakota (47.0° N, 103.7° W: paleocoordinates 52.0° N, 81.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Bullion Creek Formation, Tiffanian (61.7 - 56.8 Ma)

• Previously under Bullion Creek (Tongue River) member of Fort Union Formation, but Bullion Creek is considered a Formation.

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected in 1979

Primary reference: B. R. Erickson. 1981. Champsosaurus tenuis (Reptilia: Eosuchia). A new species from the Late Paleocene of North America. Scientific Publications of the Science Museum of Minnesota New Series 5(1):1-14 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118170: authorized by Philip Mannion, entered by Philip Mannion on 07.10.2011

Creative Commons license: CC BY (attribution)