TX 7501-Young Co., Texas ( of the United States)

Where: Young County, Texas (33.1° N, 98.6° W: paleocoordinates 5.7° S, 32.8° W)

• coordinate based on nearby landmark

When: Blach Ranch ls Member (Thrifty Formation), Virgilian (303.4 - 298.9 Ma)

Environment/lithology: carbonate

Primary reference: W. Lee, C.O. Nickell, J.S. Williams and L.G. Henbest. 1938. Stratigraphic and Paleontologic Studies of the Pennsylvanian and Permian Rocks in North-Central Texas. The University of Texas Publication (3801) [M. Patzkowsky/M. Patzkowsky]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 1074: authorized by Tom Olszewski, entered by Tom Olszewski on 11.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• age assignment based on formation name
Strophomenata
 Productida - Echinoconchidae
"Juresania nebrascensis" = Parajuresania nebrascensis
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
 Productida - Productellidae
Hystriculina wabashensis Norwood and Pratten 1855
 Productida - Productidae
"? Retaria lasallensis" = Kutorginella lasallensis Worthen 1873
originally entered as "Retaria? lasallensis"
 Productida - Rugosochonetidae
Rhynchonellata
 Athyridida - Neoretziidae
Hustedia mormoni Marcou 1858
 Athyridida - Athyrididae
 Spiriferinida - Punctospiriferidae
"Punctospirifer kentuckyensis" = Punctospirifer kentuckensis
"Punctospirifer kentuckyensis" = Punctospirifer kentuckensis Shumard 1855
 Spiriferida - Trigonotretidae
 Spiriferida - Ambocoeliidae
 Spiriferida - Elythidae
"Phricodothyris perplexa" = Condrathyris perplexa
"Phricodothyris perplexa" = Condrathyris perplexa McChesney 1859
 Rhynchonellida - Wellerellidae
Wellerella osagensis Shumard and Swallow 1858