Washakie Reservoir, Fremont County: Wuchiapingian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Trigoniida - Scaphellinidae
Scaphellina cf. phosphoriensis (Branson 1930)
synonym of Scaphellina concinna
Bivalvia - Pectinida - Streblochondriidae
Streblochondria tubicostata n. sp. Ciriacks 1963
recombined as Guizhoupecten tubicostata
(6 measurements)
Bivalvia - Pectinida - Heteropectinidae
Aviculopecten cf. vanvleeti Beede 1902
recombined as Heteropecten vanvleeti
Girtypecten sublaqueatus (Girty 1908)
(1 measurement)
Bivalvia - Pectinida - Limipectinidae
? Limipecten sp. Girty 1903
(1 measurement)
Acanthopecten coloradoensis (Newberry 1861)
(3 measurements)
Bivalvia - Pectinida - Deltopectinidae
Cyrtorostra varicostata Branson 1930
(4 measurements)
Bivalvia - Pectinida - Aviculopectinidae
Aviculopecten cf. basilicus Newell 1938
(1 measurement)
Bivalvia - Pectinida - Pseudomonotidae
Pseudomonotis sp. von Beyrich 1862
Bivalvia - Myalinida - Myalinidae
Myalina (Myalina) wyomingensis (Lea 1853)
ssp. thomasi
see common names

Geography
Country:United States State/province:Wyoming
Coordinates: 43.0° North, 109.0° West (view map)
Paleocoordinates:14.3° North, 31.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Permian Epoch:Lopingian
Stage:Wuchiapingian 10 m.y. bin:Permian 4
Key time interval:Wuchiapingian
Age range of interval:259.51000 - 254.14000 m.y. ago
Stratigraphy
Formation:Park City Member:Franson
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: lithified "limestone"
Environment:marine indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:105366
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-02-19 16:11:57 Last modified:2018-11-25 21:34:38
Access level:the public Released:2011-02-19 16:11:57
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]