Tyee Sandstone (Eocene), Oregon (Eocene of the United States)

Also known as Oregon (Tyee Sandstone, Eocene)

Where: Oregon (44.1° N, 123.1° W: paleocoordinates 44.4° N, 110.8° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Tyee Sandstone Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• Heavily bedded and fairly indurated and may be several thousand feet thick in aggregate.

• formation-level stratigraphic resolution

Environment/lithology: coastal; lithified, coarse-grained, tuffaceous, gray, blue, conglomeratic, calcareous sandstone

• Coarse-grained, dirty buff to gray color, bluish-gray when fresh. Heavily bedded. Calcareous, tuff, conglomerate, thin coal partings, shale

Size class: macrofossils

Collection methods: No collection details provided

Primary reference: W. D. Smith and L.L. Ruff. 1938. The Geology and Mineral Resources of Lane County, Oregon. State of Oregon Department of Geology and Mineral Industries Bulletin 11:1-65 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 37988: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Definitely not an exhaustive list. Only includes some mollusca, no other groups mentioned.
Bivalvia
 Arcida - Glycymerididae
Glycymeris major Stanton 1896 clam
 Carditida - Carditidae
"Cardita planicosta" = Venericor planicosta Lamarck 1801 clam
Gastropoda
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell