Where: Cavalier County, North Dakota (48.9° N, 98.1° W: paleocoordinates 48.9° N, 59.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Carlile Shale Formation (Colorado Group), Late/Upper Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Carlise Shale, which regionally overlies the Greenhorn Fm (Turonian), and is overlain by the Niobrara Fm. AGE: Middle-Late Turonian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within formation.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified claystone
Size class: macrofossils
Preservation: cast, mold/impression, concretion
Collection methods: surface (in situ),
• COLLECTOR: Not stated in text. REPOSITORY: University of North Dakota, Grand Forks.
Primary reference: W. A. Cobban. 1983. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior. United States Geological Survey Professional Paper 1253:1-25 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 88025: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Scaphites mariasensis Cobban 1851 ammonite
Scaphites corvensis Cobban 1951 ammonite |