Where: Blaine County, Montana (47.9° N, 109.0° W: paleocoordinates 54.8° N, 75.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Coal Ridge Member (Judith River Formation), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)
• near top of Judith River beds
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by J. B. Hatcher in 1888; reposited in the USNM
Collection methods: quarrying, surface (in situ), mechanical,
Primary reference: O. C. Marsh. 1888. A new family of horned Dinosauria, from the Cretaceous. The American Journal of Science, series 3 36:477-478 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 46123: authorized by Matthew Carrano, entered by Matthew Carrano on 04.01.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Gnathostomata | |
Osteichthyes indet. bony fish | |
Reptilia | |
Ceratops montanus n. gen. n. sp.
| |
Trachodon mirabilis Leidy 1856 hadrosaurid | |
Crocodylia indet. crocodilian | |
Testudinata indet. turtle |