Where: Blair County, Pennsylvania (40.5° N, 78.2° W: paleocoordinates 30.9° S, 72.8° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Stonehenge Formation, Demingian (485.4 - 478.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Primary reference: A.R. Spelman. 1966. Stratigraphy of Lower Ordovician Nittany Dolomite in central Pennsylvania. Pennsylvania Geological Survey General Geology Report G 47:1-187 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 56468: authorized by Pete Wagner, entered by Pete Wagner on 18.11.2005

Creative Commons license: CC BY (attribution)