USGS 21753-PC, Yukon River-Nation River Confluence: Roadian, Alaska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Productida - Linoproductidae
Megousia sp. Muir-Wood and Cooper 1960
Cancrinella sp.
Strophomenata - Productida - Productidae
Yakovlevia mammata (Keyserling 1846)
Rhynchonellata - Rhynchonellida - Rhynchoporidae
? Rhynchopora sp. King 1865
Rhynchonellata - Spiriferida - Elythidae
Permophricodothyris sp. Pavlova 1965
Lingulata - Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847
see common names

Geography
Country:United States State/province:Alaska
Coordinates: 65.2° North, 141.7° West (view map)
Paleocoordinates:43.0° North, 26.5° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Permian Epoch:Guadalupian
Stage:Roadian 10 m.y. bin:Permian 3
Key time interval:Roadian
Age range of interval:273.01000 - 266.90000 m.y. ago
Stratigraphy
Formation:Takhandit
Stratigraphic resolution:group of beds
Stratigraphy comments: Sandstone Unit, 14 feet above base of unit
Lithology and environment
Primary lithology:glauconitic lithified sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:102544
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2011-01-17 10:30:24 Last modified:2013-11-25 13:02:06
Access level:the public Released:2011-01-17 10:30:24
Creative Commons license:CC BY
Reference information

Primary reference:
33448. E. E. Brabb and R. E. Grant. 1971. Stratigraphy and paleontology of the revised type section for the Takhandit Limestone (Permian) in east-central Alaska. United States Geological Survey Professional Paper 703:1-25 [M. Clapham/M. Clapham]