A-996 (Eocene of the United States)

Where: Oregon (43.3° N, 123.5° W: paleocoordinates 47.3° 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 200800: authorized by Mark Uhen, entered by Mark Uhen on 19.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Mytilida - Mytilidae
Brachiodontes cowlitzensis
 Arcida - Glycymerididae
"Glycimeris sagittata" = Glycymerita sagittata, "Glycimeris fresnoensis" = Glycymeris (Tucetona) fresnoensis
"Glycimeris sagittata" = Glycymerita sagittata Gabb 1864 clam
"Glycimeris fresnoensis" = Glycymeris (Tucetona) fresnoensis Dickerson 1916 clam
 Pectinida - Propeamussiidae
"Pecten vacavillensis" = Propeamussium interradiatum
"Pecten vacavillensis" = Propeamussium interradiatum Gabb 1869 mud scallop
 Carditida - Carditidae
Cardita sp.
Cardita sp. Bruguière 1792 clam
small
 Pholadida - Corbulidae
"Corbula parilis" = Caryocorbula parilis
"Corbula parilis" = Caryocorbula parilis Gabb 1864 clam
 Cardiida - Cardiidae
"Plagiocardium (Schedocardia) brewerii" = Schedocardia brewerii, "Nemocardium linteum" = Nemocardium (Nemocardium) linteum
"Plagiocardium (Schedocardia) brewerii" = Schedocardia brewerii Gabb 1864 cockle
"Nemocardium linteum" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle
 Cardiida - Psammobiidae
"Gari hornii" = Gari (Gobraeus) hornii
"Gari hornii" = Gari (Gobraeus) hornii Gabb 1864 clam
 Cardiida - Veneridae
Pitar uvasana, "Macrocallista (Costacallista) conradiana" = Microcallista (Costacallista) conradiana
Pitar uvasana Conrad 1855 venus clam
subspecies duprei
"Macrocallista (Costacallista) conradiana" = Microcallista (Costacallista) conradiana Gabb 1864 venus clam
subspecies meganosensis
 Solenida - Solenidae
Solena (Eosolen) coosensis
 Nuculanida - Nuculanidae
"Nuculana gabbi" = Nuculana gabbii
"Nuculana gabbi" = Nuculana gabbii Conrad 1866 pointed nut clam
 Nuculida - Nuculidae
Acila decisa
Acila decisa Conrad 1855 divaricate nutclam
Gastropoda
 Opisthobranchia - Retusidae
Cylichnina tantilla
Cylichnina tantilla Anderson and Hanna 1925 snail
 Cerithioidea - Melanopsidae
Loxotrema turritum
Loxotrema turritum Gabb 1869 snail
 Cerithioidea - Turritellidae
Turritella buwaldana
Turritella buwaldana Dickerson 1916 turret shell
subspecies coosensis
 Sorbeoconcha - Naticidae
Polinices (Euspira) nuciformis, Sinum obliquum, "Amaurellina hendoni" = Tejonia moragai
Polinices (Euspira) nuciformis Gabb 1864 moon snail
Sinum obliquum Gabb 1864 moon snail
"Amaurellina hendoni" = Tejonia moragai Stewart 1927 moon snail
 Sorbeoconcha - Ficidae
Ficopsis remondii
Ficopsis remondii Gabb 1864 fig shell
subspecies crescentensis
 Neogastropoda - Mitridae
Mitra cretacea
Mitra cretacea Gabb 1864 mitre shell
 Neogastropoda - Fasciolariidae
Latirus roseburgensis
Latirus roseburgensis Hendon 1938 snail
 Neogastropoda - Volutidae
"Cryptochorda californica" = Cryptochorda (Cryptochorda) californica
"Cryptochorda californica" = Cryptochorda (Cryptochorda) californica Cooper 1894 volute
 Sorbeoconcha - Strombidae
"Rimella (Macilentos) macilenta" = Ectinochilus (Macilentos) macilentus
"Rimella (Macilentos) macilenta" = Ectinochilus (Macilentos) macilentus White 1889 true conch
subspecies oregonensis
 Sorbeoconcha - Cassidae
Galeodea sp.
Galeodea sp. Link 1807 snail
 Architaenioglossa - Ampullinidae
"Amaurellina (Euspirocrommium) clarki" = Pachycrommium clarki
"Amaurellina (Euspirocrommium) clarki" = Pachycrommium clarki Stewart 1927 snail