Steamboat pass shale LC 35 (Cambrian of the United States)

Where: Utah (38.7° N, 113.4° W: paleocoordinates 5.5° S, 88.1° W)

• coordinate stated in text

When: Steamboat Pass Shale Member (Orr Formation), Furongian (497.0 - 485.4 Ma)

• Little horse canyon

Environment/lithology: marine; lithified, gray limestone

• Calcisiltite and fine-grained calcarenite, with a few intraformational conglomerate lenses, medium-dark-gray, thin-bedded

Size class: macrofossils

Preservation: cast

Collection methods: Fossils were collected from the Steamboat Pass Shale member of the Orr formation, LC 35, 35ft from base of the formation

Primary reference: L. F. Hintze and A. R. Palmer. 1976. Upper Cambrian Orr Formation: Its Subdivisions and Correlatives in Western Utah. Geological Survey Bulletin 1405-G [M. Hopkins/S. Mahmood]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 156441: authorized by Melanie Hopkins, entered by Shaun Mahmood on 21.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Olenida - Aphelaspidae
? Aphelaspis sp.
? Aphelaspis sp. Resser 1935 trilobite