Also known as USGS 5394
Where: Columbia County, Oregon (45.9° N, 123.2° W: paleocoordinates 45.6° N, 112.3° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Pittsburg Bluff Formation, Rupelian (33.9 - 28.1 Ma)
• From lower Pittsburg Bluff Formation. The Pittsburg Bluff Formation conformably overlies the Keasey Formation (late Eocene and early Oligocene) and is conformably overlain by the Scappose Formation (late Oligocene and early Miocene). Parts of the formation are lithologically similar and therefore the stratigraphic position of exposures are sometimes uncertain. The estimated thickness for the entire formation is 200 ml the thickest continuous section of the formation is 100 m thick.
• bed-level stratigraphic resolution
Environment/lithology: coastal; fine-grained, gray sandstone
Size class: macrofossils
Reposited in the CAS, UCMP, UW
• Material housed in the USGS, Menlo Park. Also collections from UCMP, CAS, Stanford University (SU), University of Washington (UW), University of Oregon (UO), and the Academy of Natural Sciences of Philadelphia (ANSP)
Primary reference: E. J. Moore. 1976. Oligocene marine mollusks from the Pittsburg Bluff Formation in Oregon. United States Geological Survey Professional Paper 922:1-66 [A. Miller/A. Hendy/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 37817: authorized by Austin Hendy, entered by Austin Hendy on 24.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Molopophorus gabbi Dall 1909 snail | |
Bruclarkia columbiana Anderson and Martin 1914 snail | |
Perse pittsburgensis Durham 1944 snail | |
"Neverita (Glossaulax) thomsonae" = Glossaulax reclusiana, "Cryptonatica pittsburgensis" = Neverita (Neverita) washingtonensis, Polinices washingtonensis
"Neverita (Glossaulax) thomsonae" = Glossaulax reclusiana Deshayes 1839 moon snail
"Cryptonatica pittsburgensis" = Neverita (Neverita) washingtonensis Weaver 1916 moon snail
Polinices washingtonensis Weaver 1916 moon snail | |
Bivalvia | |
Solena (Eosolen) eugenensis Clark 1925 clam
Solen townsendensis Clark 1925 clam | |
"Callista (Macrocallista) pittsburgensis" = Macrocallista pittsburgensis
"Callista (Macrocallista) pittsburgensis" = Macrocallista pittsburgensis Dall 1900 venus clam | |
"Spisula (Mactromeris) pittsburgensis" = Mactromeris pittsburgensis
"Spisula (Mactromeris) pittsburgensis" = Mactromeris pittsburgensis Clark 1925 clam | |
Acila (Truncacila) shumardi Dall 1909 divaricate nutclam | |
"Litorhadia washingtonensis" = Nuculana (Saccella) washingtonensis
"Litorhadia washingtonensis" = Nuculana (Saccella) washingtonensis Weaver 1916 pointed nut clam |