Where: Mason County, Texas (30.7° N, 99.4° W: paleocoordinates 17.4° S, 95.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Corbinia apopsis trilobite zone, San Saba Member (Wilberns Formation), Trempealeauan (492.5 - 485.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: limestone and dolomite

Size class: macrofossils

Primary reference: S. A. Longacre. 1970. Trilobites of the Upper Cambrian Ptychaspid Biomere Wilberns Formation, central Texas. The Paleontological Society Memoir 4:1-70 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 219656: authorized by Pete Wagner, entered by Pete Wagner on 15.04.2021

Creative Commons license: CC BY (attribution)