Also known as UNSM Sh-114

Where: Sheridan County, Nebraska (42.8° N, 102.2° W: paleocoordinates 43.6° N, 97.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lions Bridge Beds Member (Lavaca Flats Beds Formation), Harrisonian (24.8 - 18.5 Ma)

• "late late Arikareean" (= Harrisonian)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; fine-grained conglomerate

Size class: mesofossils

Reposited in the UNSM

Collection methods: quarrying,

• "less than about 45 kg of gravel concentrate produced a small, fairly diverse microfauna. Reptile remains were abundant, especially jaws with teeth, while no fish, amphibian, or bird elements were recovered. Small mammal taxa are represented by one jaw fragment with one tooth and 38 isolated cheek teeth."

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 69807: authorized by John Alroy, entered by John Alroy on 07.03.2007

Creative Commons license: CC BY (attribution)