UNSM Dw-108, Chadron Roadside locality ( of the United States)

Where: Dawes County, Nebraska (42.8° N, 103.1° W: paleocoordinates 43.7° N, 97.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Arikaree Group, Arikareean (29.5 - 18.5 Ma)

Environment/lithology: fluvial; poorly lithified sandstone

Size classes: macrofossils, mesofossils

Reposited in the UNSM

Primary reference: R. H. Tedford, C. C. Swisher, D. R. Prothero, S. A. King, and T. E. Tierney. 1996. The Whitneyan-Arikareean transition in the High Plains. In D. R. Prothero, R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 312-334 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 17708: authorized by John Alroy, entered by John Alroy on 12.04.1997

Creative Commons license: CC BY (attribution)

Taxonomic list

• based on 1973 Ph.D. thesis by L. Martin
Mammalia
 Lagomorpha - Leporidae
Palaeolagus philoi Dawson 1958 rabbit
? Megalagus primitivus Schlaikjer 1935 rabbit
 Rodentia - Cricetidae
Geringia mcgregori Macdonald 1970 rodent
Leidymys blacki Macdonald 1963 rodent
 Rodentia - Heteromyidae
"Kirkomys schlaikjeri" = Proharrymys schlaikjeri
"Kirkomys schlaikjeri" = Proharrymys schlaikjeri Black 1961 rodent
 Rodentia - Florentiamyidae
Sanctimus stuartae Macdonald 1970 rodent
 Tribosphenida - Erinaceidae
Ocajila makpiyahe Macdonald 1963 hedgehog
 Soricomorpha - Soricidae
Domnina dakotensis Macdonald 1970 shrew