Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 43.9° N, 99.2° W)
• coordinate based on political unit
When: Ash Hollow Formation (Ogallala Group), Barstovian (16.3 - 12.5 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
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 18138: authorized by John Alroy, entered by John Alroy on 17.06.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
near Wolf Creek localities of Green 1956 (see)
almost on the state line; Whiteclay (called "White Clay") is just south of the border in Nebraska
Mammalia | |
Aelurodon ferox Leidy 1858 bone-crushing dog |