Trilophodon giganteus Site (Miocene of the United States)

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 (13.6 - 10.3 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

• apparently only one specimen
 Proboscidea - Gomphotheriidae
Gomphotherium obscurum Leidy 1869 gomphothere