Also known as Brumbaugh Quarry; Troxell Mastodon
Where: Tripp County, South Dakota (43.2° N, 99.8° W: paleocoordinates 43.6° N, 97.2° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Cap Rock Member (Ash Hollow Formation), Clarendonian (12.5 - 9.4 Ma)
Environment/lithology: terrestrial
Primary reference: M. F. Skinner and F. W. Johnson. 1984. Tertiary stratigraphy and the Frick Collection of fossil vertebrates from north-central Nebraska. Bulletin of the American Museum of Natural History 178(3):1-368 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 18426: authorized by John Alroy, entered by John Alroy on 12.04.1997
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Gomphotherium obscurum Leidy 1869 mastodon |