Porcupine Butte (Miocene of the United States)
Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 43.8° N, 99.9° W)
• coordinate based on political unit
When: Cap Rock Member (Ash Hollow Formation), Clarendonian (12.5 - 9.4 Ma)
Environment/lithology: terrestrial
Primary reference: M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 18325: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Mammalia | |
Neohipparion affine n. sp.
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