TX 7549-Stephens Co., Texas: Virgilian - Wolfcampian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Orthida - Enteletidae
Enteletes hemiplicatus (Hall 1852)
Rhynchonellata - Spiriferida - Trigonotretidae
Neospirifer triplicatus (Hall 1852)
Strophomenata - Productida - Productidae
Reticulatia huecoensis (King 1931)
Strophomenata - Strophomenida - Rugosochonetidae
Neochonetes granulifer (Owen 1852)
Strophomenata - Orthotetida - Derbyiidae
Derbyia sp. Waagen 1884
see common names

Geography
Country:United States State/province:Texas County:Stephens
Coordinates: 33.0° North, 98.8° West (view map)
Paleocoordinates:0.9° South, 30.0° West
Basis of coordinate:based on nearby landmark
Time
Period: Carboniferous - Permian Epoch: Pennsylvanian - Cisuralian
Stage: Gzhelian 10 m.y. bin: Carboniferous 5 - Permian 1-2
*Period:Carboniferous
Key time interval: Virgilian - Wolfcampian
Age range of interval: 303.7 - 286.1 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Harpersville
Stratigraphy comments: so-called "Waldrip limestone"
Lithology and environment
Primary lithology: "limestone"
Geology comments: 8 to 10 inch limestone about 8 inches above a coal
Taphonomy
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:age assignment based on formation name
Metadata
Database number:1100
Authorizer:T. Olszewski, M. Patzkowsky Enterer:T. Olszewski
Modifier:J. Alroy Research group:marine invertebrate
Created:1999-03-12 07:56:13 Last modified:2005-05-10 13:41:27
Access level:the public Released:2000-11-20 13:53:10
Creative Commons license:CC BY
Reference information

Primary reference:
34. 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]