USGS D333(T): Middle Eocene, Alaska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Plafker and Miller 1957
    = Cristispira pugetensis Allison 1965
Addicott and Plafker 1971
Bivalvia - Ostreida - Ostreidae
Plafker and Miller 1957
see common names

Geography
Country:United States State/province:Alaska County:Yakutat
Coordinates: 60.1° North, 140.7° West (view map)
Paleocoordinates:70.3° North, 120.4° West (Wright 2013)
Basis of coordinate:estimated from map
Time
Period: Paleogene Epoch: Eocene
10 m.y. bin: Cenozoic 2-3
Key time interval: Middle Eocene
Age range of interval: 47.8 - 37.71 m.y. ago
Stratigraphy
Formation:Kulthieth
Stratigraphy comments: originally considered late Eocene based on identification of Turritella uvasana sargeanti; considered middle Eocene based on reidentification of Turritella as Cristispira pugetensis by Addicott and Plafker
Lithology and environment
Primary lithology: sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:cast
Size of fossils:mesofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:193093
Authorizer:P. Holroyd Enterer:P. Holroyd
Modifier:M. Uhen Research group:marine invertebrate
Created:2018-05-06 23:32:05 Last modified:2025-02-22 15:12:02
Access level:the public Released:2018-05-06 23:32:05
Creative Commons license:CC0
Reference information

Primary reference:
11128. W.O. Addicott and G. Plafker. 1971. Paleocene mollusks from the Gulf of Alaska Tertiary province - a significant new occurrence on the North Pacific Rim. United States Geological Survey Professional Paper 750(B):48-52 [A. Miller/A. Hendy/A. Hendy]

Secondary references:

65652 G. Plafker and D. J. Miller. 1957. Reconnaissance geology of the Malaspina district, Alaska. United States Geological Survey Oil and Gas Investigations Map OM-189 [P. Holroyd/P. Holroyd/P. Holroyd]