Progyrolepis tricessimalaris-type locality, Rattlesnake Canyon (Permian of the United States)

Where: Archer County, Texas (33.7° N, 98.9° W: paleocoordinates 3.7° S, 31.7° W)

• coordinate based on nearby landmark

When: Admiral Formation (Wichita Group), Autunian (298.9 - 295.0 Ma)

Environment/lithology: terrestrial; gray, calcareous claystone

• Admiral Formation is generally thought to be terrestrial/near shore, but there is insufficient information in the paper to assign it to a specific environment.
• "...contained in a highly calcareous, gray clay..."

Size class: macrofossils

Collected by Dr Theodore E. White in 1933

• Museum of Comparative Zoology expedition of Harvard University.

Primary reference: D. H. Dunkle. 1946. A new palaeoniscoid fish from the Lower Permian of Texas. Journal of the Washington Academy of Science 36:402-409 [G. Lloyd/G. Lloyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124982: authorized by Graeme Lloyd, entered by Graeme Lloyd on 02.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Elonichthyiformes - Acrolepidae
Progyrolepis tricessimalaris n. sp. Dunkle 1946 ray-finned fish
MCZ 6619