UNSM Sm-101 (Neogene of the United States)

Also known as Ashton (Rockville) locality

Where: Sherman County, Nebraska (41.2° N, 98.8° W: paleocoordinates 41.5° N, 97.0° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Ash Hollow Formation, Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the UNSM

Primary reference: C. B. Schultz and L. D. Martin. 1975. Bears (Ursidae) from the late Cenozoic of Nebraska. Bulletin of the University of Nebraska State Museum 10(1):47-54 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18439: authorized by John Alroy, entered by John Alroy on 21.09.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Felidae
"Machairodus cf. coloradensis" = Amphimachairodus coloradensis
"Machairodus cf. coloradensis" = Amphimachairodus coloradensis Cook 1922 cat
 Carnivora - Ursidae
Agriotherium sp. Wagner 1837 bear
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet. Gray 1821 rhinoceros