USNM Bull Creek, southwest of Rockwood: Virgilian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Euomphalina - Euomphalidae
Amphiscapha (Amphiscapha) muricata (Knight 1934)
5 specimens
see common names

Geography
Country:United States State/province:Texas
Coordinates: 31.5° North, 99.4° West (view map)
Paleocoordinates:4.2° South, 32.7° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Carboniferous Epoch: Pennsylvanian
Stage: Gzhelian 10 m.y. bin: Carboniferous 5
Key time interval: Virgilian
Age range of interval: 303.7 - 298.9 m.y. ago
Stratigraphy
Formation:Harpersville Member:Waldrip Shale
Stratigraphic resolution:group of beds
Stratigraphy comments: Originally "Ambocoelia" zone below Waldrip Limestone No. 1 of Obregon Formation; PJW: This is now the Waldrip Shale member of the Harpersville formation; the Obregon is equivalent to to the Waldrip Shale + Belknap Limestone (=Waldrip Limestone) members of the Harpersville, and seems no longer to be used.
Lithology and environment
Primary lithology: lithified "limestone"
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:121462
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:P. Wagner Research group:marine invertebrate
Created:2011-12-04 04:35:03 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-12-04 04:35:03
Creative Commons license:CC0
Reference information

Primary reference:
11481. E. L. Yochelson. 1956. Permian Gastropoda of the southwestern United States. 1. Euomphalacea, Trochonematacea, Pesudophoracea, Anomphalacea, Craspedostomatacea, and Platyceratacea. Bulletin of the American Museum of Natural History 110(3):173-276 [D. Bottjer/M. Clapham/M. Clapham]