Where: Archer County, Texas (33.7° N, 98.7° W: paleocoordinates 0.9° N, 28.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Archer City Formation (Wichita Group), Wolfcampian (298.9 - 286.0 Ma)

• The former Putnam Formation corresponds to the upper part of the Archer City Formation (see Fig. 2 in Sander, 1989)

• formation-level stratigraphic resolution

Environment/lithology: "floodplain"; red mudstone and sandstone

Size class: macrofossils

Primary reference: P. M. Sander. 1989. Early Permian Depositional Environments of Pond Bonebeds in Central Archer County, Texas. Palaeogeography, Palaeoclimatology, Palaeoecology 69:1-21 [A. Behrensmeyer/A. Behrensmeyer/E. Dunne]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180978: authorized by Richard Butler, entered by Emma Dunne on 10.08.2016

Creative Commons license: CC BY (attribution)