Also known as UC A-980
Where: Lane County, Oregon (44.1° N, 123.1° W: paleocoordinates 44.4° N, 110.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Eugene Formation, Priabonian (38.0 - 33.9 Ma)
• 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
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, tuffaceous, brown, gray, blue sandstone and tuffaceous, brown, gray, blue siltstone
Size class: macrofossils
Preservation: mold/impression, trace
Reposited in the CAS
Collection methods: quarrying,
• Collections held at University of Oregon, University of California, Californian Academy of Sciences (CAS), United States Geological Survey (USGS), and Stanford University (NP).
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 38988: authorized by Austin Hendy, entered by Austin Hendy on 18.05.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Nuculana washingtonensis" = Nuculana (Saccella) washingtonensis
"Nuculana washingtonensis" = Nuculana (Saccella) washingtonensis Weaver 1916 pointed nut clam | |
Modiolus eugenensis Clark 1925 mussel | |
Solena (Eosolen) aff. eugenensis Clark 1925 clam
Solen sicarius Gould 1850 clam | |
"Spisula eugenensis" = Mactromeris eugenensis
"Spisula eugenensis" = Mactromeris eugenensis Clark 1925 clam | |
Pitar (Pitar) dalli Weaver 1916 venus clam | |
Macoma (Heteromacoma) vancouverensis tellin clam
Tellina sp. n. sp. Linnaeus 1758 tellin clam
Tellina eugenia Dall 1909 tellin clam | |
Mya (? Arenomya) kusiroensis Nagao and Inoue 1941 softshell clam | |
Scaphopoda | |
Dentalium (? Fissidentalium) laneensis Hickman 1969 tusk shell | |
Gastropoda | |
Epitonium (Boreoscala) condoni Dall 1909 wentletrap | |
Bruclarkia vokesi snail | |
Crepidula ungana Dall 1908 slipper shell |