Eugene East (UO 2538) - #12 (Hickman): Priabonian, Oregon

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculanida - Nuculanidae
Nuculana washingtonensis (Weaver 1916)
recombined as Nuculana (Saccella) washingtonensis
Bivalvia - Nuculida - Nuculidae
Acila (Truncacila) nehalemensis (Hanna 1924)
original and current combination Acila nehalemensis
Subspecies: Acila (Truncacila) nehalemensis minima
Bivalvia - Cardiida - Tellinidae
? Tellina sp. n. sp. Linnaeus 1758
Tellina pittsburgensis Clark 1925
Tellina (Moerella) lincolnensis (Weaver 1916)
Macoma aff. inquinata (Deshayes 1855)
recombined as Macoma (Macoma) inquinata
Macoma (Heteromacoma) vancouverensis
Bivalvia - Cardiida - Cardiidae
Parvicardium eugenense (Clark 1925)
Bivalvia - Cardiida - Ungulinidae
Diplodonta parilis (Conrad 1848)
Lucina parilis
Bivalvia - Cardiida - Mactridae
Spisula eugenensis (Clark 1925)
recombined as Mactromeris eugenensis
Bivalvia - Cardiida - Veneridae
Pitar (Pitar) sp. n. sp. Römer 1857
Pitar (Pitar) dalli (Weaver 1916)
Pitar (Lamelliconcha) clarki (Dickerson 1917)
recombined as Lamelliconcha clarki
Macrocallista sp. n. sp. Meek 1876
Macrocallista pittsburgensis (Dall 1900)
original and current combination Meretrix pittsburgensis
Bivalvia - Thraciida - Thraciidae
Thracia condoni Dall 1909
recombined as Thracia (Cetothrax) condoni
Bivalvia - Pandorida - Pandoridae
Pandora (Pandora) laevis Hickman 1969
Bivalvia - Solenida - Solenidae
Solena (Eosolen) eugenensis (Clark 1925)
Solen sicarius Gould 1850
Bivalvia - Mytilida - Mytilidae
Modiolus eugenensis Clark 1925
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea diegoana (Conrad 1855)
Crepidula ungana Dall 1908
Gastropoda - Ficidae
Ficus modesta (Conrad 1848)
Gastropoda - Neogastropoda - Ptychatractidae
Exilia lincolnensis Weaver 1916
Gastropoda - Neogastropoda - Turridae
Gemmula bentsonae Durham 1944
Procerapex bentsonae (Durham 1944)
Hickman 1976
original and current combination Gemmula bentsonae
Gastropoda - Neogastropoda - Siphonaliidae
Bruclarkia vokesi
Bruclarkia columbianum (Anderson and Martin 1914)
recombined as Bruclarkia columbiana
Gastropoda - Naticidae
Sinum obliquum (Gabb 1864)
original and current combination Naticina obliqua
Neverita thomsonae Hickman 1969
synonym of Glossaulax reclusiana
Polinices washingtonensis (Weaver 1916)
Gastropoda - Epitoniidae
Epitonium (Boreoscala) condoni (Dall 1909)
Acrilla (Ferminoscala) ? becki Durham 1937
Acrilla (Ferminoscala) dickersoni (Durham 1937)
Gastropoda - Heterostropha - Acteonidae
Acteon parvum Dickerson 1917
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (? Fissidentalium) laneensis Hickman 1969
see common names

Geography
Country:United States State/province:Oregon County:Lane
Coordinates: 44.1° North, 123.1° West (view map)
Paleocoordinates:44.4° North, 110.8° West
Basis of coordinate:based on nearby landmark
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:Eugene
Stratigraphic resolution:bed
Stratigraphy comments: Eugene Formation can be subdivided faunally: a lower unit correlating to the Keasey Fm, a middle unit correlating to the Gries Ranch Beds of WA, and a upper unit correlated with the Pittsburg Bluff Fm. Thickness of formation may be up to 15,000 feet, but probably around 5,000 feet. Most of the outcrops are scattered so it is difficult to estimate their relative stratigraphic placement
Lithology and environment
Primary lithology:tuffaceous,brown,gray,blue lithified sandstone
Secondary lithology:tuffaceous,brown,gray,blue siltstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Tuffaceous and highly feldspathic sandstone or siltstone which is bluish-gray to olive when fresh and weathers to a buff or orange-brown color. Gray sandstone and siltstone beds may range from several to 50 feet in thickness and are interbedded with minor amounts of sandy sahel and clay shale, occasional beds of conglomerate, and thin lenses of gray or buff-colored volcanic ash
Environment:coastal indet.
Taphonomy
Modes of preservation:body,mold/impression,trace
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:CAS
Collection method comments: Collections held at University of Oregon, University of California, Californian Academy of Sciences (CAS), United States Geological Survey (USGS), and Stanford University (NP).
Taxonomic list comments:Exhaustive for mollusca
Metadata
Also known as:UO 2538
Database number:38940
Authorizer:A. Hendy, M. Uhen Enterer:A. Hendy, M. Uhen
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-05-17 11:50:49 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-05-17 11:50:49
Creative Commons license:CC BY
Reference information

Primary reference:
10532. C. J. S. Hickman. 1969. The Oligocene marine molluscan fauna of the Eugene Formation in Oregon. University of Oregon Museum of Natural History Bulletin 16:1-112 [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]