Where: Todd County, South Dakota (43.2° N, 100.7° W: paleocoordinates 43.5° N, 98.7° W)
• coordinate based on political unit
When: Ash Hollow Formation (Ogallala Group), Clarendonian to Clarendonian (12.5 - 9.4 Ma)
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: X. Wang, R. H. Tedford, and B. E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora: Canidae). Bulletin of the American Museum of Natural History 243:1-392 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 18087: authorized by John Alroy, entered by John Alroy on 19.05.2000, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
| Mammalia | |
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Aelurodon taxoides Hatcher 1894 bone-crushing dog also "Spring Creek"; "talus of slide on Little White River"
Epicyon saevus Leidy 1858 bone-crushing dog
Paratomarctus euthos McGrew 1935 bone-crushing dog | |
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"Protohippus simus n. sp." = Protohippus supremus3, "Neohipparion whitneyi n. gen. n. sp." = Neohipparion affine2, "Neohipparion dolichops n. sp." = Neohipparion affine3
"Neohipparion whitneyi n. gen. n. sp." = Neohipparion affine2 Leidy 1869 hipparionine horse "Little White River, near Rosebud Agency, South Dakota"; MacFadden and Skinner 1982 say this specimen is "'Upper Miocene,' Late Clarendonian"
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