Also known as UO 2541
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 38987: authorized by Austin Hendy, entered by Austin Hendy on 18.05.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Crepidula ungana Dall 1908 slipper shell
Calyptraea diegoana Conrad 1855 slipper shell | |
Bruclarkia vokesi snail | |
Ficus modesta Conrad 1848 fig shell | |
"Neverita thomsonae" = Glossaulax reclusiana, Polinices washingtonensis
"Neverita thomsonae" = Glossaulax reclusiana Deshayes 1839 moon snail
Polinices washingtonensis Weaver 1916 moon snail | |
Bivalvia | |
"Acila (Truncacila) nehalemensis" = Acila nehalemensis
"Acila (Truncacila) nehalemensis" = Acila nehalemensis Hanna 1924 divaricate nutclam Subspecies: Acila (Truncacila) nehalemensis minima
| |
"Nuculana washingtonensis" = Nuculana (Saccella) washingtonensis
"Nuculana washingtonensis" = Nuculana (Saccella) washingtonensis Weaver 1916 pointed nut clam | |
"Thracia condoni" = Thracia (Cetothrax) condoni
"Thracia condoni" = Thracia (Cetothrax) condoni Dall 1909 clam | |
Solena (Eosolen) eugenensis Clark 1925 clam | |
Macrocallista sp. n. sp., Pitar (Pitar) dalli
Macrocallista sp. n. sp. Meek 1876 venus clam
Pitar (Pitar) dalli Weaver 1916 venus clam | |
"Spisula eugenensis" = Mactromeris eugenensis
"Spisula eugenensis" = Mactromeris eugenensis Clark 1925 clam | |
Semele willamettensis Hickman 1969 clam | |
"Macoma aff. inquinata" = Macoma (Macoma) inquinata, Macoma (Heteromacoma) vancouverensis
"Macoma aff. inquinata" = Macoma (Macoma) inquinata Deshayes 1855 tellin clam
Macoma (Heteromacoma) vancouverensis tellin clam | |
Modiolus eugenensis Clark 1925 mussel |