Where: Coos County, Oregon (43.4° N, 124.2° W: paleocoordinates 43.4° N, 122.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Empire Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Empire Fm, which is overlain by the Elk River Fm. THICKNESS: From bed within formation that reaches a thickness of 500 ft. AGE: Miocene according to Arnold and Hannibal (1913). More recent publications (Hertlein and Crickmay, 1925) indicate an Early Pliocene age. STRATIGRAPHIC POSITION: From basal sandstone within formation.
• bed-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified sandstone
Size class: macrofossils
Collection methods: surface (in situ),
• COLLECTOR: H. Hannibal (c 1910's). REPOSITORY: Unknown, not stated.
Primary reference: R. Arnold and H. Hannibal. 1913. The marine Tertiary stratigraphy of the North Pacific coast of America. Proceedings of the American Philosophical Society 52(212):559-605 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 71152: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Lingulata | |
Discinisca oregonensis Dall 1909 | |
Rhynchonellata | |
Terebratalia occidentalis Dall 1871 | |
Gastropoda | |
"Natica clausa" = Cryptonatica affinis
"Natica clausa" = Cryptonatica affinis Gmelin 1791 moon snail | |
Turris coli turrid | |
Boreotrophon stuarti Smith 1880 murex snail | |
Argobuccinum coosense triton shell | |
Bivalvia | |
Parapholas californica Conrad 1837 clam | |
"Marcia oregonensis" = Katherinella arnoldi, "Paphia stayleyi" = Leukoma staleyi
"Marcia oregonensis" = Katherinella arnoldi Weaver 1916 venus clam
"Paphia stayleyi" = Leukoma staleyi Gabb 1866 venus clam | |
"Spisula albaria" = Mactromeris albaria
"Spisula albaria" = Mactromeris albaria Conrad 1848 clam | |
"Macoma inquinata" = Macoma (Macoma) inquinata, "Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma inquinata" = Macoma (Macoma) inquinata Deshayes 1855 tellin clam
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam | |
Panomya ampla Dall 1898 clam | |
Solen sicarius Gould 1850 clam |