Locality KM (Lower Choza Fm.) (Permian of the United States)

Where: Foard County, Texas (33.8° N, 99.6° W: paleocoordinates 2.2° N, 29.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Choza Formation (Clear Fork Group), Leonardian (286.0 - 273.0 Ma)

• Lower part of the Choza Fm.

Environment/lithology: pond; green, red, yellow shale and conglomerate

• "Varied red, green, and yellow shales, with evenness of bedding increasing to west. Anhydrite abundant in western part. Pond shales in western half of area. A thin sheet of fine conglomerate, with lenses suggesting channels, is present over a wide area in the central and western parts of the locality. It occurs near the base of the exposed section." (Olson, 1958)

Size class: macrofossils

Collected by E. C. Olson in 1949

Primary reference: E. C. Olson. 1958. Fauna of the Vale and Choza: Summary, Review, and Integration of the Geology and the Faunas. Fieldiana Geology 10(32):397-448 [R. Butler/E. Dunne]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 177018: authorized by Richard Butler, entered by Emma Dunne on 16.03.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
 Xenacanthiformes - Xenacanthidae
Xenacanthus cf. platypternus
Amphibia
 Nectridea - Diplocaulidae
Diplocaulus recurvatus
Diplocaulus recurvatus Olson 1952 tetrapod