Also known as Trilophosaurus Quarry 1, NMMNH L-860, WPA, Work Project No. 13352

Where: Howard County, Texas (32.2° N, 101.2° W: paleocoordinates 4.9° N, 40.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Colorado City Formation (Dockum Group), Carnian to Carnian (237.0 - 208.5 Ma)

• variously referred to the Iatan or Colorado City of the Dockum Group; low in formation; lower level than Quarry 1

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; concretionary, green, red, yellow, blue mudstone and paleosol/pedogenic, calcareous mudstone

Size classes: macrofossils, mesofossils

Collected by WPA in 1939–1941; reposited in the NMMNH, TMM

Collection methods: bulk, quarrying, surface (float), surface (in situ), mechanical, sieve,

Primary reference: Anonymous. 1939. The third quarterly report covering the quarter ending December 31,1939 for the state-wide paleontologic-mineralogic survey in Texas. A Federal Works Agency Work Projects Administration Project. O.P. No. 665-66-3-233. State Serial No. 300-88 1-47 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 22704: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 29.05.2001, edited by Matthew Carrano and Richard Butler

Creative Commons license: CC BY (attribution)