Point of Rocks (Ordovician of the United States)

Also known as SF 578

Where: Millard County, Utah (39.1° N, 113.1° W: paleocoordinates 8.3° S, 79.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: N trilobite zone, Lehman Formation, Whiterockian (471.8 - 457.5 Ma)

• Whiterockian

Environment/lithology: peritidal; lithified limestone

• carbonate platform above wave base, peritidal
• nodular; thin-bedded; mostly covered

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: bulk,

Primary reference: G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 186173: authorized by Pete Wagner, entered by Pete Wagner on 16.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Strophomenidae
Kirkina millardensis n. sp. Salmon 1942