JR-521.5. Upper James River.: Trempealeauan, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Ptychopariida - Plethopeltidae
Stenopilus latus
Trilobita - Asaphida - Dikelocephalidae
Calvinella tenuisculpta
Saukiella serotina Longacre 1970
Briscoia llanoensis Winston and Nicholls 1967
Trilobita - Asaphida - Ptychaspididae
Macronoda cf. prima
Idiomesus intermedius
Euptychaspis kirki
see common names

Geography
Country:United States State/province:Texas County:Mason
Coordinates: 30.6° North, 99.3° West (view map)
Paleocoordinates:17.5° South, 95.6° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Furongian
10 m.y. bin: Cambrian 5
Key time interval: Trempealeauan Trilobite zone:  Prosaukia serotina
Age range of interval: 489.2 - 485.4 m.y. ago
Stratigraphy
Formation:Wilberns Member:San Saba
Local section:Upper James River Local bed:521.5 ft
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: "limestone"
Secondary lithology: dolomite
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:219653
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2021-04-15 00:02:28 Last modified:2021-04-15 00:15:56
Access level:the public Released:2021-04-15 00:02:28
Creative Commons license:CC BY
Reference information

Primary reference:
76424. S. A. Longacre. 1970. Trilobites of the Upper Cambrian Ptychaspid Biomere Wilberns Formation, central Texas. The Paleontological Society Memoir 4:1-70 [P. Wagner/P. Wagner]