Bullwacker Coulee (Cretaceous of the United States)
Where: Blaine County, Montana (47.9° N, 109.2° W: paleocoordinates 54.8° N, 75.2° W)
• coordinate based on nearby landmark
When: Judith River Formation, Campanian (83.5 - 70.6 Ma)
Environment/lithology: lacustrine; siliciclastic sediments
• The Site is composed of Bentonite with Soda-ash (Alkali) in association, small residues of Kaolinite (poor grade) containing lignitized wood shards, and resin (Amber). The site is a Lake deposit.
Size classes: macrofossils, mesofossils
Primary reference: G. R. Case. 1978. A new selachian fauna from the Judith River Formation (Campanian) of Montana. Palaeontographica Abteilung A 160(Lfg. 1-6):176-205 [J. Kriwet/W. Glaeser/M. Carrano] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 69253: authorized by Juergen Kriwet, entered by Wolfgang Glaeser on 22.02.2007