A-1135 (Eocene of the United States)

Where: Oregon (43.2° N, 123.4° W: paleocoordinates 47.2° N, 104.4° W)

• coordinate estimated from map

When: Roseburg Formation (Umpqua Group), Ypresian (56.0 - 47.8 Ma)

• originally lower 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 200802: authorized by Mark Uhen, entered by Mark Uhen on 19.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ostreida - Pteriidae
Exputens alexi Clark 1934 pearl oyster
 Cardiida - Cardiidae
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
 Nuculida - Nuculidae
Acila decisa Conrad 1855 divaricate nutclam
 Protobranchia - Nuculanidae
Nuculana gabbi pointed nut clam
 Neogastropoda -
"Ancilla gabbi" = Ancilla (Spirancilla) gabbi
"Ancilla gabbi" = Ancilla (Spirancilla) gabbi Cossman 1899 snail
 Neogastropoda - Fasciolariidae
Fusinus merriami Dickerson 1916 snail
 Neogastropoda - Tudiclidae
Pseudoperissolax blakei Conrad 1855 snail
 Naticoidea - Naticidae
"Amaurellina hendoni" = Tejonia hendoni
"Amaurellina hendoni" = Tejonia hendoni Turner 1938 moon snail
 Calyptraeoidea - Calyptraeidae
Calyptraea diegoana Conrad 1857 slipper shell
 Tonnoidea - Cassidae
Galeodea sp. Link 1807 snail
Galeodea sutterensis Dickerson 1916 snail
 Sorbeoconcha - Turritellidae
? Turritella merriami Dickerson 1913 turret shell
Turritella meganosensis Clark and Woodford 1927 turret shell
subspecies protumescens