Agate (7 Miles NE) ( of the United States)

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 43.3° N, 98.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• = Upper Harrison beds

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: F. B. Loomis. 1924. Miocene oreodonts in the American Museum. Bulletin of the American Museum of Natural History 51(1):1-37 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 17739: authorized by John Alroy, entered by John Alroy on 18.10.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• allocation unclear: Stenomylus crassipes Loomis 1910a: type, from "seven miles northeast of Agate... uppermost sandstones of the Lower Harrison beds"; Hunt 1981 suggests that this is actually in the Runningwater Fm.
Mammalia
 Artiodactyla - Merycoidodontidae
Merycochoerus magnus n. sp. Loomis 1924 oreodont
"Upper Harrison beds, seven miles northeast of Agate"