Also known as HG#94.3

Where: Park County, Wyoming (44.8° N, 109.3° W: paleocoordinates 7.8° S, 82.3° W)

• small collection-level geographic resolution

When: Elvinia zone, Sage Member (Snowy Range Formation), Franconian (497.0 - 485.4 Ma)

• General for member: Storm deposit, as a whole represents a transitional facies intermediate between nearshore clastics and outer-shelf carbonates. The Sage Member (occurance of hardgrounds) is 36-37m thick with the hardgrounds forming on upper surfaces of carbonate flat pebble conglomerates. Some of the hardgrounds developed on hummocky mound-like masses of micritic sediments (boundstones or lithoherms).

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, burrowed, hardground, pebbly conglomerate

Primary reference: C. E. Brett, W. D. Liddell, and K. L. Derstler. 1983. Late Cambrian hard substrate communities from Montana/Wyoming: the oldest known hardground encrusters. Lethaia 16(4):281-289 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 9928: authorized by Mark Patzkowsky, entered by Phil Borkow on 01.02.2001

Creative Commons license: CC BY (attribution)