Near Paleo Quarry (Miocene to of the United States)

Where: Sheridan County, Nebraska (42.7° N, 102.5° W: paleocoordinates 43.2° N, 99.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Valentine Formation (Ogallala Group), Barstovian to Barstovian (16.0 - 10.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: C. B. Schultz and C. H. Falkenbach. 1941. Ticholeptinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 79(1):1-105 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 18280: authorized by John Alroy, entered by John Alroy on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• see Skinner and Johnson 1984 p. 289
might include type of Balantiomys nebraskensis Korth 1997a, which is from section 21 in this township and range; Paleo Quarry is in section 22
Mammalia
 Ungulata - Merycoidodontidae
"Merychyus medius" = Ustatochoerus medius
"Merychyus medius" = Ustatochoerus medius Leidy 1858 oreodont