Where: Coos County, Oregon (43.4° N, 124.3° W: paleocoordinates 43.3° 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 shale (upper portion) within formation.
• bed-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, silty 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 71148: authorized by Austin Hendy, entered by Austin Hendy on 20.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Calyptraea inornata Gabb 1869 slipper shell | |
"Turris perversa" = Spirotropis (Antiplanes) perversa
"Turris perversa" = Spirotropis (Antiplanes) perversa Gabb 1865 snail | |
Polinices galianoi, "Natica clausa" = Cryptonatica affinis, "Ampullina oregonensis" = Cryptonatica oregonensis
Polinices galianoi Dall 1909 moon snail
"Natica clausa" = Cryptonatica affinis Gmelin 1791 moon snail
"Ampullina oregonensis" = Cryptonatica oregonensis Conrad 1865 moon snail | |
Turris impecunia turrid | |
Bathytoma gabbiana snail | |
Chrysodomus bairdi true whelk | |
Fusinus coosensis snail | |
"Chrysodomus imperialis" = Thais (Stramonita) imperialis, Boreotrophon stuarti, Nucella decemcostata
"Chrysodomus imperialis" = Thais (Stramonita) imperialis Dall 1908 murex snail
Boreotrophon stuarti Smith 1880 murex snail
Nucella decemcostata murex snail | |
"Olivella pedroana" = Callianax pedroana
"Olivella pedroana" = Callianax pedroana Conrad 1855 olive snail | |
Cymatium pacificum triton shell
Argobuccinum cammani triton shell | |
Phalium aequisulcatum Dall 1909 snail
Phalium turricula Dall 1909 snail | |
Tegula stantoni snail | |
Calliostoma cammani Dall 1909 top snail | |
Scaphopoda | |
"Dentalium rectius" = Rhabdus rectius
"Dentalium rectius" = Rhabdus rectius Carpenter 1864 tusk shell | |
Bivalvia | |
Yoldia impressa, "Yoldia strigata" = Yoldia (Cnesterium) aeolica
Yoldia impressa Conrad 1849 clam
"Yoldia strigata" = Yoldia (Cnesterium) aeolica Valenciennes 1846 clam | |
"Thracia trapezoidea" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoidea" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam | |
"Mya truncata" = Mya (Mya) truncata
"Mya truncata" = Mya (Mya) truncata Linnaeus 1758 softshell clam | |
"Cardium meekianum" = Clinocardium (Clinocardium) meekianum, Cardium coosense
"Cardium meekianum" = Clinocardium (Clinocardium) meekianum Gabb 1866 cockle
Cardium coosense Dall 1909 cockle | |
"Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam | |
"Paphia stayleyi" = Leukoma staleyi, "Marcia oregonensis" = Katherinella arnoldi
"Paphia stayleyi" = Leukoma staleyi Gabb 1866 venus clam
"Marcia oregonensis" = Katherinella arnoldi Weaver 1916 venus clam | |
"Spisula albaria" = Mactromeris albaria
"Spisula albaria" = Mactromeris albaria Conrad 1848 clam | |
Solen sicarius Gould 1850 clam | |
"Pecten coosensis" = Lituyapecten coosensis
"Pecten coosensis" = Lituyapecten coosensis Shumard 1858 scallop |