Harding sandstone cephalopods, Twin Mountain: Franklinian, Colorado

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Actinocerida - Ormoceratidae
Ormoceras pollacki n. sp.
holotype and paratype at the Paleontological Research Institution
see common names

Geography
Country:United States State/province:Colorado County:Fremont County
Coordinates: 38.4° North, 105.3° West (view map)
Paleocoordinates:14.5° South, 73.8° West
Basis of coordinate:based on nearby landmark
Time
Period: Ordovician Epoch: Late Ordovician
10 m.y. bin: Ordovician 4-5
Key time interval: Franklinian
Age range of interval: 457 - 449.8 m.y. ago
Stratigraphy
Formation:Harding Sandstone
Lithology and environment
Primary lithology: "shale"
Includes fossils?Y
Lithology description: from a shaly zone near the middle of the Harding sandstone, and about 30 feet above its base
Environment:offshore indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:216976
Authorizer:B. Seuss Enterer:B. Seuss
Modifier:M. Carrano Research group:marine invertebrate
Created:2021-01-08 01:00:00 Last modified:2022-10-14 16:26:46
Access level:the public Released:2021-01-08 01:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

74462. R.H. Flower. 1952. Cephalopods from the Harding and Manitou Formations of Colorado. Journal of Paleontology 26(3):505-518 [B. Seuss/B. Seuss/B. Seuss]