TX 7547-Stephens Co., Texas (Carboniferous to of the United States)

Where: Stephens County, Texas (33.0° N, 98.8° W: paleocoordinates 0.9° S, 30.0° W)

• coordinate based on nearby landmark

When: Harpersville Formation, Virgilian to Virgilian (303.7 - 286.0 Ma)

• so-called "Upper Crystal Falls limestone"

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 3801:1-252 [M. Patzkowsky/M. Patzkowsky/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 1099: authorized by Tom Olszewski, entered by Tom Olszewski on 12.03.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• age assignment based on formation name
Show authors, comments, and common names
Bivalvia
 Nuculanida - Polidevciidae
? Phestia sp.
? Phestia sp. Chernyshev 1951 clam
originally entered as "Phestia? sp."
 Cardiidia - Sanguinolitidae
Wilkingia ? terminale
Wilkingia ? terminale Hall 1852 clam
originally entered as "Wilkingia terminale?"
Rhynchonellata
 Spiriferida - Trigonotretidae
"Neospirifer triplicatus" = Neospirifer dunbari
"Neospirifer triplicatus" = Neospirifer dunbari King 1933
Strophomenata
 Productida - Echinoconchidae
Echinaria moorei, "Juresania nebrascensis" = Parajuresania nebrascensis
Echinaria moorei Dunbar and Condra 1932
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
 Orthotetida - Derbyiidae
Derbyia ? ciscoensis
Derbyia ? ciscoensis
originally entered as "Derbyia ciscoensis?"
 Strophomenida - Rugosochonetidae
Neochonetes ? meekanus, Neochonetes granulifer
Neochonetes ? meekanus
originally entered as "Neochonetes meekanus?"