Casper Creek, Rattlesnake Hills: Lopingian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Spiriferinida - Pennospiriferinidae
Punctospirifer pulchra (Meek 1860)
Cephalopoda - Nautilida - Liroceratidae
Coelogasteroceras thomasi n. sp. Miller and Cline 1934
(1 measurement)
see common names

Geography
Country:United States State/province:Wyoming
Coordinates: 42.8° North, 107.3° West (view map)
Paleocoordinates:13.1° North, 30.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Permian Epoch: Lopingian
10 m.y. bin: Permian 4
Key time interval: Lopingian
Age range of interval: 259.51 - 251.902 m.y. ago
Stratigraphy
Formation:Phosphoria Member:Ervay
Stratigraphic resolution:group of beds
Stratigraphy comments: Top of so-called "Redbed Embar" correlative of "Top Limestone Member" (i.e., Ervay) of Phosphoria. Davydov et al. 2017 dated an ash bed in the upper Meade Peak Member at 260.57 ± 0.07 / 0.14 / 0.31 Ma, indicating that the Meade Peak is as young as uppermost Capitanian.
Lithology and environment
Primary lithology: lithified "limestone"
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:88654
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2009-04-17 16:15:41 Last modified:2018-11-25 22:08:36
Access level:the public Released:2009-04-17 16:15:41
Creative Commons license:CC BY
Reference information

Primary reference:
27887. A. K. Miller and L. M. Cline. 1934. The cephalopods of the Phosphoria Formation of northwestern United States. Journal of Paleontology 8(3):281-302 [M. Clapham/M. Clapham]