Also known as Psycht area
Where: Clallam County, Washington (48.2° N, 122.1° W)
• Paleocoordinates: 52.8° N, 107.8° W (Wright 2013)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Clallam Formation, Chattian (27.3 - 23.0 Ma)
• GENERAL STRATIGRAPHY: The Clallam Formation is a predominantly marine sandstone with minor conglomerate and siltstone exposed along the Strait of Juan de Fuca in northwestern Washington. Marine molluscs occur throughout the 600 to 800 m thick formation but are especially abundant in the lowermost 240 m. Pillarian Stage afe, a provincial time stratigraphic unit of late early Miocene age. Age emended to Chattian follow more recent work [Hendy, 7/2016].
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified sandstone
Size class: macrofossils
Preservation: mold/impression
Collected by Addicott in 1971; reposited in the USGS
Collection methods: quarrying,
• REPOSITORY: USGS (Menlo Park).
Primary reference: W.O. Addicott. 1976. Molluscan paleontology of the lower Miocene Clallam Formation, northwestern Washington. United States Geological Survey Professional Paper 976:1-44 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37575: authorized by Austin Hendy, entered by Austin Hendy on 17.03.2004
Creative Commons license: CC0 (CC0)
Taxonomic list
Scaphopoda | |
Dentalium schencki Moore 1963 tusk shell | |
Bivalvia | |
"Acila cf. conradi" = Acila (Truncacila) conradi
"Acila cf. conradi" = Acila (Truncacila) conradi Meek 1864 divaricate nutclam | |
"Yoldia supramontereyensis" = Yoldia (Kalayoldia) supramontereyensis
"Yoldia supramontereyensis" = Yoldia (Kalayoldia) supramontereyensis Arnold 1908 clam | |
"Tellina emacerata" = Tellina (Oudardia) emacerata
"Tellina emacerata" = Tellina (Oudardia) emacerata Conrad 1849 tellin clam | |
"Spisula albaria" = Mactromeris albaria
"Spisula albaria" = Mactromeris albaria Conrad 1848 clam | |
Gastropoda | |
"Natica vokesi" = Natica (Natica) clarki
"Natica vokesi" = Natica (Natica) clarki Etherington 1931 moon snail |