Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.5° N, 33.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: China Tank Member (Word Formation), Roadian (272.5 - 268.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Primary reference: G. H. Girty. 1908. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651 [P. Wagner/P. Wagner/P. Wagner] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108862: authorized by Matthew Clapham, entered by Matthew Clapham on 08.05.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)