Where: McCone County, Montana (48.0° N, 105.6° W: paleocoordinates 54.4° N, 78.4° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Hell Creek Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• "Upper sandstone, 'Hell Creek Beds,' Lance formation, Upper Cretaceous"
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by B. Brown in 1909; reposited in the AMNH
Primary reference: C. W. Gilmore. 1911. A new fossil alligator from the Hell Creek Beds of Montana. Proceedings of the United States National Museum 41(1860):297-302 [M. Carrano/M. Carrano/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 100110: authorized by John Alroy, entered by John Alroy on 29.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Brachychampsa montana n. gen. n. sp.
Brachychampsa montana n. gen. n. sp. Gilmore 1911 crocodilian Holotype AMNH-DP 5032, rostrum broken across the orbits, with some associated cranial fragments, probably representing a juvenile or subadult
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