Taylor County Site 7 (Pelecypods) (Permian of the United States)

Also known as B.E.G. 30996; W.P.A. quarry

Where: Taylor County, Texas (32.1° N, 99.8° W: paleocoordinates 1.1° N, 29.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Vale Formation, Kungurian (279.3 - 272.3 Ma)

• "22 feet above the Vale-Standpipe contact"

•the base and top of the Clear Fork Group (i.e., Arroyo, Vale, and Choza formations) are both within the Kungurian: see Wardlaw 2005 (Permophiles) for the base, and DiMichele et al. 2001 (J Paleont) for the top

• group of beds-level stratigraphic resolution

Environment/lithology: coarse channel fill; argillaceous conglomerate

• "streams of running water"
• "limestone, clay-pebble conglomerate which pinches out laterally"

Size class: macrofossils

Collection methods: quarrying,

Primary reference: J. A. Wilson. 1953. Permian vertebrates from Taylor County, Texas. Journal of Paleontology 27(3):456-470 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67737: authorized by John Alroy, entered by John Alroy on 07.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Synapsida - Sphenacodontidae
Dimetrodon sp. Cope 1878 synapsid
Bivalvia
 Actinodontida - Palaeomutelidae
Palaeanodonta sp. Amalitsky 1895 clam