Where: Shenandoah County, Virginia (38.8° N, 78.6° W: paleocoordinates 29.7° S, 58.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Member (Edinburg Formation), Blackriveran (460.9 - 449.5 Ma)

• peltifer conodont zone

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: H. B. Whittington and W.R., I.I. Evitt. 1953. Silicified Middled Ordovician trilobites. Geological Society of America Memoir 59:1-139 [P. Wagner/P. Wagner] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 73345: authorized by Pete Wagner, entered by Pete Wagner on 12.06.2007, edited by Melanie Hopkins