Where: Blair County, Pennsylvania (40.3° N, 78.3° W: paleocoordinates 30.8° S, 87.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pleasent Hill Limestone Formation, Solvan to Solvan (513.0 - 501.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lithified limestone

Reposited in the USNM

• Collection consists of free cheeks, cranidia, and pygidia, some with preserved tests. Collections containing the intitials USNM were collected by Butts in the mid-late 1940s while mapping outcrops

Primary reference: F. Rasetti. 1965. Middle Cambrian trilobites of the Pleasent Hill Formation in Central Pennsylvania. Journal of Paleontology 39(5):1007-1014 [M. Patzkowsky/P. Borkow/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 8594: authorized by Mark Patzkowsky, entered by Phil Borkow on 07.08.2000