A-850 (Eocene of the United States)

Where: Oregon (43.3° N, 123.1° W: paleocoordinates 45.4° N, 107.4° W)

• coordinate estimated from map

When: Flournoy Formation (Umpqua Group), Eocene (56.0 - 33.9 Ma)

• originally upper Umpqua Formation

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: F. E. Turner. 1938. Stratigraphy and Mollusca of the Eocene of western Oregon. Geological Society of America Special Paper (10)1-130 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 200891: authorized by Mark Uhen, entered by Mark Uhen on 22.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Melanopsidae
Loxotrema turritum Gabb 1869 snail
 Cerithioidea - Potamididae
? Potamides carbonicola Cooper 1894 horn snail
 Neogastropoda - Buccinidae
"Siphonalia bicarinata" = Siphonalia (Nassicola) bicarinata
"Siphonalia bicarinata" = Siphonalia (Nassicola) bicarinata Dickerson 1915 true whelk
subspecies monospina
 Sorbeoconcha - Naticidae
Ampulina (Crommium) andersoni Dickerson 1914 moon snail
 Neritoidea - Neritidae
"Nerita triangulata" = Nerita (Theliostyla) triangulata
"Nerita triangulata" = Nerita (Theliostyla) triangulata Gabb 1869 snail