Southeast of Lusk ( of the United States)

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 43.9° N, 99.4° W)

• coordinate based on political unit

When: Marsland Formation (Hemingford Group), Harrisonian (24.8 - 20.4 Ma)

• = Upper Harrison beds; formational assignment of Hunt and Skolnick 1996 is admittedly not strongly supported

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: C. B. Schultz and C. H. Falkenbach. 1950. Phenacocoelinae, a new subfamily of oreodonts. Bulletin of the American Museum of Natural History 95(3) [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17840: authorized by John Alroy, entered by John Alroy on 02.06.1997

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Mustelidae
Megalictis ferox2 Matthew 1907 mustelid carnivore
"4miE-2miS Lusk ... Upper Harrison"
 Ungulata - Merycoidodontidae
"Merycoides harrisonensis" = Paramerychyus harrisonensis1
"Merycoides harrisonensis" = Paramerychyus harrisonensis1 Peterson 1907 oreodont