Also known as Eastern Runningwater Fauna

Where: Sheridan County, Nebraska (42.7° N, 102.1° W: paleocoordinates 43.4° N, 98.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Runningwater Formation, Early/Lower Hemingfordian (20.4 - 16.0 Ma)

• "early Hemingfordian"; "mid." part of formation

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and conglomerate

Size class: mesofossils

Reposited in the UNSM

Collection methods: bulk, sieve,

• "Most of the local faunas listed are the result of test-screening sand and gravel lenses and sorting between 45 and 136 kg of concentrate" (apparently at each site)

Primary reference: B. E. Bailey. 2004. Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas. Paludicola 4(3):81-113 [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 69915: authorized by John Alroy, entered by John Alroy on 09.03.2007

Creative Commons license: CC BY (attribution)