UCMP 3854 Big River (Oligocene of the United States)

Where: Yakutat County, Alaska (60.0° N, 141.4° W: paleocoordinates 60.2° N, 133.5° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Poul Creek Formation, Chattian (28.1 - 23.0 Ma)

• referred to as Upper Oligocene Poul Formation by Clark 1932; updated to current USGS stratigraphic nomenclature of Poul Creek Fm.

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the UCMP

Primary reference: B. L. Clark. 1932. Fauna of the Poul and Yakataga Formations (Upper Oligocene) of Southern Alaska. Bulletin of the Geological Society of America 43:797-846 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 195953: authorized by Patricia Holroyd, entered by Patricia Holroyd on 01.09.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Seguenzioidea - Eucyclidae
"Turcicula turbonata" = Bathybembix turbonata
"Turcicula turbonata" = Bathybembix turbonata Clark 1932 snail
 Epitonioidea - Epitoniidae
 Sorbeoconcha - Naticidae
Polinices (Euspira) ramonensis, "Natica (Cryptonatica) "n. sp."" = Cryptonatica
Polinices (Euspira) ramonensis Clark 1918 moon snail
"Natica (Cryptonatica) "n. sp."" = Cryptonatica Dall 1892 moon snail
 Opisthobranchia - Cylichnidae
Scaphander alaskensis n. sp. Clark 1932 snail
Bivalvia
 Thraciida - Thraciidae
Thracia schencki Teglund 1933 clam
 Cardiida - Veneridae
"Chione cf. cryptolineata" = Securella cryptolineata, "Pitaria (Katherinella) arnold" = Katherinella, Macrocallista pittsburgensis, ? Macrocallista rearensis n. sp.
"Chione cf. cryptolineata" = Securella cryptolineata Clark 1918 venus clam
"Pitaria (Katherinella) arnold" = Katherinella venus clam
Macrocallista pittsburgensis Dall 1900 venus clam
? Macrocallista rearensis n. sp. Clark 1932 venus clam
 Cardiida - Tellinidae
"Macoma cf. secta" = Rexithaerus secta
"Macoma cf. secta" = Rexithaerus secta Conrad 1837 tellin clam
 Carditida - Carditidae
Venericardia yakatagensis n. sp. Clark 1932 clam
 Nuculida - Nuculidae
Nucula (Acila) yakatagensis Clark 1932 divaricate nutclam