Bull Lake (Tosi Mb), Cedar Ridge, Fremont County: Lopingian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Hunanopectinidae
Monotis landerensis Branson 1930
Bivalvia - Pectinida - Deltopectinidae
Aviculopecten alatus Branson 1930
(1 measurement)
Bivalvia - Ostreida - Pinnidae
Aviculopinna informal sp. B
(1 measurement)
    = Meekopinna sagitta Chronic 1952
Yancey 1978
Aviculopinna informal sp. A
(1 measurement)
see common names

Geography
Country:United States State/province:Wyoming
Coordinates: 43.2° North, 109.2° West (view map)
Paleocoordinates:14.2° North, 31.7° 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:Tosi
Stratigraphic resolution:group of beds
Stratigraphy comments: 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: not reported
Environment:marine 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:87156
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2009-03-08 17:54:23 Last modified:2018-11-25 22:03:03
Access level:the public Released:2009-03-08 17:54:23
Creative Commons license:CC BY
Reference information

Primary reference:

27437. K.W. Ciriacks. 1963. Permian and Eotriassic bivalves of the middle Rockies. Bulletin of the American Museum of Natural History 125(1):1-100 [M. Clapham/M. Clapham]

Secondary references:

16473 T. E. Yancey. 1978. Brachiopods and mollusca of the Lower Permian Arcturus Group, Nevada and Utah, Part 1: brachiopods, scaphopods, rostroconchs, and bivalves. Bulletins of American Paleontology 74(303):257-367 [P. Wagner/P. Wagner/M. Clapham]