Rock Ledge Mastodon Quarry (Miocene of the United States)
Where: Brown County, Nebraska (42.7° N, 100.0° W: paleocoordinates 43.1° N, 97.4° 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 18349: authorized by John Alroy, entered by John Alroy on 12.04.1997
Creative Commons license: CC BY (attribution)
Taxonomic list
• apparently only one specimen
possibly includes Aelurodon taxoides Wang et al. 1999: Merritt Dam Member, "Mastodon Prospect"
possibly includes Aelurodon taxoides Wang et al. 1999: Merritt Dam Member, "Mastodon Prospect"
Show authors, comments, and common names
| Mammalia | |
"Gomphotherium willistoni" = Trilophodon osborni
"Gomphotherium willistoni" = Trilophodon osborni Barbour 1916 gomphothere | |