Sample Detail of
Sample: Sample No. 78-ADt-245 -- USGS No. Cenozoic Loc. M7370
Locality: Field No. 78-ADt-245
Description: Coarse-grained sandstone with conglomeratic seams; outcrop near waterfall on tributary of Yellow Bluff Creek, south of Port Heiden, Chignik (C-2) quadrangle, sec. 12, T. 42 S., R. 60 W.; Latitude 56o 33 min. 18 sec. N; Longitude 158o 39 min. 48 sec. W.
Location: Alaska Quadrangle: Chignik C-2
Township&Range: T42S R60W Section: Sec.12
Lat.: 56o33'18 " Long.: 158o39'48 "
Reference
Title: Report on Referred Fossils ,  1978 (12/20)
This report deals with eight collections of megafossils from the Bear Lake Formation on the Alaska Peninsula, southwestern Alaska. Fossils consist of molds and casts only. Collections made by R. L. Detterman unless stated.
Report by: Louie Marincovich , Jr.
Referred by: Robert L. Detterman
Age: Miocene
Formation: Bear Lake Formation
Comment:The earliest verified occurrence of MYA TRUNCATA in Alaska is in the Yakataga Formation at Cape Yakataga, in strata of late middle Miocene or early late Miocene age. This species is also common in younger strata and in modern Alaskan seas; it lives in depths of 0-50 meters in modern seas, burrowed into sandy substrate. The articulated CLINOCARDIUM is slim evidence for little post-mortem transport of the mollusks shells.
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Mya (Mya) truncata Linnaeus
2 Bivalves Cyclocardia sp.
3 Bivalves Clinocardium sp. one specimen appears to be articulated
4 Bivalves ?Chione sp.
5 Bivalves Indeterminate fragments
6 Snails ?Neptunea sp.