A-1139 (Eocene of the United States)

Where: Oregon (43.0° N, 123.9° W: paleocoordinates 47.0° N, 105.0° 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 200798: authorized by Mark Uhen, entered by Mark Uhen on 19.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Turritellidae
Turritella uvasana Conrad 1855 turret shell
subspecies hendoni
 Architaenioglossa - Ampullinidae
"Cernina (Eocernina) hannibali" = Eocernina hannibali
"Cernina (Eocernina) hannibali" = Eocernina hannibali Dickerson 1914 snail
 Neogastropoda - Volutidae
"Cryptochorda californica" = Cryptochorda (Cryptochorda) californica
"Cryptochorda californica" = Cryptochorda (Cryptochorda) californica Cooper 1894 volute
 Sorbeoconcha - Naticidae
"Amaurellina hendoni" = Tejonia moragai
"Amaurellina hendoni" = Tejonia moragai Stewart 1927 moon snail
 Opisthobranchia - Retusidae
Cylichnina tantilla Anderson and Hanna 1925 snail
Bivalvia
 Mytilida - Mytilidae
 Cardiida - Veneridae
Mercimonia bunkeri, Pitar uvasana, "Macrocallista (Costacallista) conradiana" = Microcallista (Costacallista) conradiana
Mercimonia bunkeri Hanna 1927 venus clam
Pitar uvasana Conrad 1855 venus clam
subspecies duprei
"Macrocallista (Costacallista) conradiana" = Microcallista (Costacallista) conradiana Gabb 1864 venus clam
subspecies meganosensis
 Cardiida - Cardiidae
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle