Pogonip Group, meter 75, Zone 11, Steptoe, Nevada (Ordovician of the United States)

Where: Nevada (40.8° N, 115.1° W: paleocoordinates 6.4° S, 78.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pogonip Group, Whiterockian (470.0 - 457.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified, shelly/skeletal limestone

• cyclical alternations of massive limestones with interbedded recessive thin-bedded limestones and shales

Size class: macrofossils

Reposited in the USNM

Collection methods: bulk, mechanical,

Primary reference: R. A. Fortey and M.L. Droser. 1996. Trilobites at the base of the Middle Ordovician, western United States. Journal of Paleontology 70(1):73-99 [S. Holland/S. Holland/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 37490: authorized by Steven Holland, entered by Steven Holland on 15.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Proetida - Bathyuridae
Uromystrum cf. validum