Columbia (USGS 15308) - Hickman (1980): Priabonian, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Cardiida - Tellinidae
Moerella quasimacoma Hickman 2015
Hickman 2015
Gastropoda - Eucyclidae
Bathybembix columbiana (Dall 1909)
Gastropoda - Opisthobranchia - Cylichnidae
Scaphander impunctatus Hickman 1980
Gastropoda - Naticidae
Natica (Natica) weaveri Tegland 1933
Gastropoda - Neogastropoda - Ptychatractidae
Exilia bentsonae Hickman 1980
Gastropoda - Neogastropoda - Nassariidae
Nassariidae indet. Iredale 1916
Gastropoda - Neogastropoda - Cancellariidae
Bonellitia (Admetula) tumida Hickman 1980
Gastropoda - Neogastropoda - Conidae
Conus weltoni Hickman 1980
Gastropoda - Cassidae
Echinophoria dalli (Dickerson 1917)
see common names

Geography
Country:United States State/province:Oregon County:Columbia
Coordinates: 45.8° North, 123.3° West (view map)
Paleocoordinates:46.1° North, 111.0° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Priabonian
Age range of interval:37.71000 - 33.90000 m.y. ago
Stratigraphy
Formation:Keasey Member:Lower
Stratigraphic resolution:bed
Stratigraphy comments: Lower member consists of 0-150 m of dark gray, highly micaceous, laminated siltstone and interbedded mudsone. Glaucontitc layers are not uncommon. The Keasey Formation consists of a maximum of 700 m of gray tuffaceous marine siltstone and massive mudstone discontinuously exposed in quaries, road and railway cuts, and along major drainages. The Keasey Fm overlies the late Eocene Cowlitz Fm, and underlies the Pittsburg Bluff Fm. Fm is subdivided into three informal members.
Lithology and environment
Primary lithology:planar lamination,micaceous,gray siltstone
Secondary lithology: mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Dark gray, highly micaceous, laminated siltstone and interbedded mudstone
Environment:deep-water indet.
Geology comments: No general geologic data provided
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: USGS collections are reposited in USNM. Other collections are reposited at Stanford University (SU), UC Berkeley Museum of Paleontology (UCMP), Cal. Acad. Sci. (CAS), Oregon State Dept. of Geology and Mineral Industries (DOGAMI)
Taxonomic list comments:Exhaustive for gastropoda
Metadata
Also known as:USGS 15308
Database number:39947
Authorizer:A. Hendy, M. Uhen Enterer:A. Hendy, M. Uhen
Modifier:M. Uhen Research group:marine invertebrate
Created:2004-06-12 20:52:11 Last modified:2020-03-25 15:24:31
Access level:the public Released:2004-06-12 20:52:11
Creative Commons license:CC BY
Reference information

Primary reference:
490. C. S. Hickman. 1980. Paleogene Marine Gastropods of the Keasey Formation in Oregon. Bulletins of American Paleontology 78(310):1-112 [L. Ivany/E. Kowalski/M. Uhen]

Secondary references:

57317 C. S. Hickman. 2015. Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part III: The heteroconchs. PaleoBios 32:1-44 [W. Kiessling/M. Krause]