USGS #15588 - Pittsburg Bluff Formation: Chattian, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Turritella pittsburgensis Moore 1976
Gastropoda - Naticidae
Neverita (Glossaulax) thomsonae Hickman 1969
synonym of Glossaulax reclusiana
Cryptonatica pittsburgensis Moore 1976
synonym of Polinices washingtonensis
Polinices washingtonensis (Weaver 1916)
Gastropoda - Neogastropoda - Turridae
Spirotropis kincaidi (Weaver 1916)
recombined as Parasyrinx kincaidi
Parasyrinx kincaidi (Weaver 1916)
Hickman 1976
Gastropoda - Neogastropoda - Nassariidae
Molopophorus gabbi Dall 1909
Gastropoda - Neogastropoda - Fasciolariidae
Priscofusus stewarti (Tegland 1933)
Perse pittsburgensis Durham 1944
Gastropoda - Neogastropoda - Siphonaliidae
Bruclarkia columbiana (Anderson and Martin 1914)
Eosiphonalia oregonensis (Dall 1909)
Gastropoda - Epitoniidae
Opalia (? Dentiscala) hertleini Moore 1976
Gastropoda - Opisthobranchia - Cylichnidae
Scaphander stewarti Durham 1944
Gastropoda - Heterostropha - Acteonidae
Acteon sp. n. sp. Montfort 1810
Acteon chehalisensis (Weaver 1916)
Gastropoda - Heterostropha - Architectonicidae
Architectonica blanda Dall 1909
Bivalvia - Nuculanida - Nuculanidae
Litorhadia washingtonensis (Weaver 1916)
recombined as Nuculana (Saccella) washingtonensis
Bivalvia - Nuculida - Nuculidae
Acila (Truncacila) shumardi (Dall 1909)
Nucula (Leionucula) vokesi Moore 1976
Bivalvia - Thraciida - Periplomatidae
Cochlodesma bainbridgensis Clark 1925
Bivalvia - Thraciida - Thraciidae
Thracia (Thracia) condoni (Dall 1909)
recombined as Thracia (Cetothrax) condoni
Bivalvia - Cardiida - Mactridae
Spisula (? Mactromeris) veneriformis
original and current combination Mactromeris
Spisula (Mactromeris) pittsburgensis (Clark 1925)
recombined as Mactromeris pittsburgensis
Bivalvia - Cardiida - Veneridae
Callista (Macrocallista) pittsburgensis (Dall 1900)
original and current combination Meretrix pittsburgensis
Bivalvia - Cardiida - Tellinidae
Tellina (Eurytellina) aduncanasa
? Tellina pittsburgensis Clark 1925
Bivalvia - Hiatellida - Hiatellidae
Panopea ramonensis (Clark 1925)
Bivalvia - Solenida - Solenidae
Solena (Eosolen) eugenensis (Clark 1925)
Bivalvia - Lucinida - Lucinidae
Lucinoma columbiana (Clark and Arnold 1923)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (? Fissidentalium) laneensis Hickman 1969
see common names

Geography
Country:United States State/province:Oregon County:Columbia
Coordinates: 45.8° North, 123.2° West (view map)
Paleocoordinates:45.5° North, 114.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Oligocene
Stage:Chattian 10 m.y. bin:Cenozoic 4
Key time interval:Chattian
Age range of interval:27.82000 - 23.03000 m.y. ago
Stratigraphy
Formation:Pittsburg Bluff
Stratigraphic resolution:bed
Stratigraphy comments: Upper part of Pittsburg Fm. The Pittsburg Bluff Formation conformably overlies the Keasey Formation (late Eocene and early Oligocene) and is conformably overlain by the Scappoose 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.
Lithology and environment
Primary lithology:"cross stratification",fine,concretionary,gray poorly lithified sandstone
Includes fossils?Y
Lithology description: Massive olive-gray fine-grained sandstone, with concretions, trough shaped prisms, silstone rip-up clasts.
Environment:offshore Tectonic setting:forearc basin
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Temporal resolution:time-averaged
Spatial resolution:allochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USGS
Collection method comments: 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)
Taxonomic list comments:Very complete for mollusca.
Metadata
Database number:37691
Authorizer:A. Hendy, M. Uhen Enterer:A. Hendy, M. Uhen
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-03-20 19:23:40 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-03-20 19:23:40
Creative Commons license:CC BY
Reference information

Primary reference:
10064. 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]

Secondary references:

10878 C. J. Hickman. 1976. Bathyal gastropods of the family Turridae in the Early Oligocene Keasey Formation in Oregon, with a review of some deep-water genera in the Paleocene of the Eastern Pacific. Bulletins of American Paleontology 70(292):1-119 [A. Miller/A. Hendy/P. Wagner]