South of Bridgeport (Whitney) (Oligocene of the United States)

Where: Morrill County, Nebraska (41.7° N, 103.1° W: paleocoordinates 42.7° N, 95.7° W)

• coordinate based on political unit

When: upper Whitney Member (Brule Formation), Whitneyan (33.3 - 30.8 Ma)

Environment/lithology: terrestrial

Primary reference: C. B. Schultz and C. H. Falkenbach. 1968. The Phylogeny of the Oreodonts. Part 1: Merycoidodontinae, Eporeodontinae, and Leptaucheniinae, Three Subfamilies Of Oreodonts, With an Appendix to the Revision Of The Merycoidodontidae, and Part 2. Summary and Conclusions Concerning the Merycoidodontidae. Bulletin of the American Museum of Natural History 139:1-498 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17386: authorized by John Alroy, entered by John Alroy on 05.08.1996

Creative Commons license: CC BY (attribution)

Taxonomic list

• Proheteromys nebraskensis Wood 1937: "Leptauchenia zone, near Bridgeport" = Brule Zone D
Mammalia
 Artiodactyla - Merycoidodontidae
Leptauchenia decora Leidy 1856 oreodont
"Brule Zone D"
Leptauchenia major Leidy 1856 oreodont