Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Miocene
Kinds of fossils: Mollusks, sand dollar echinoids
Quadrangle or area: Chignik (A-5, A-6, C-2) Quadrangle, Peninsula
Shipment No.: A-78-51M
Referred by: Detterman, Robert L.
Report prepared by: Marincovich, Louie , Jr.
Date: 12/20/1978

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.

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78-ADt-245 (Cenozoic Loc. M7370) , Chignik , 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 56 deg. 33 min. 18 sec. N; Longitude 158 deg. 39 min. 48 sec. W.
Mya (Mya) truncata Linnaeus
Cyclocardia sp.
Clinocardium sp.
?Chione sp.
Indeterminate fragments
?Neptunea sp.
78-ADt-145, No. 1 (Cenozoic Loc. M7371) , Chignik , Olive gray, volcanic-rich, medium-grained sandstone, top 45 feet (14 meters) of measured section 7.64 to 7.14 miles (12.2 to 11.4 kilometers) N 4 deg E of VABM Hard (Ivanof Bay, Stepovak Bay D-5), sections 19 and 30, T. 48 S., R. 65 W., Chignik (A-5) quadrangle; Latitude 56 deg. 00 min. 35 sec. N; Longitude 159 deg. 28 min. 50 sec. W to Latitude 56 deg. 00 min. 07 sec. N; Longitude 159 deg. 28 min. 38 sec. W. This fossil locality and the three immediately below are in the same stratigraphic section.
Glycymeris sp.
Fortipecten mollerensis MacNeil
Clinocardium sp.
?Thracia sp.
?Cyclocardia sp.
Acila (Truncacila) sp.
Spisula sp.
Indeterminate fragments - numerous
Naticid sp.
sand dollar echinoids
Wood fragments
78-ADt-145, No. 2 (Cenozoic Loc. M7372) , Chignik , Grayish olive-greeen, poorly sorted, massive sandstone. Same locality as M7371, above, but 190 feet (57 meters) from top of measured section.
Fortipecten mollerensis MacNeil
Clinocardium sp.
Mytilus (Plicatomytilus) gratacapi Allison & Addicott
Mya (Mya) cf. M.(M.) truncata Linnaeus
Indeterminate fragments
?Neptunea sp.
78-ADt-145, No. 3 (Cenozoic Loc. M7373) , Chignik , Dark yellowish brown, poorly sorted, massive sandstone. Same locality as M7371, above, but 215 feet (65 mneters) from top of measured section.
Fortipecten mollerensis MacNeil
Glycymeris sp.
Clinocardium sp.
?Mytilus sp.
Mya (?Arenomya) aff. M.(?A.) elegans (Eichwald)
Sand dollar echinoid
78-ADt-145, No. 4 (Cenozoic Loc. M7374) , Chignik , Grayish olive-green, poorly sorted, conglomeratic sandstone; Same loclaity as M7371, above, but 360 feet (108 meters) from top of measured section.
?Neptunea sp.
78-AMm-15 (Cenozoic Loc. M7375) , Chignik , Coarse to conglomeratic, volcanic-rich, sandstone; fossiliferous layer approximately 3-5 feet thick, approaches coquina; outcrop 7.4 miles (11.8 kilometers) N 10 deg. W of VABM Hard (Ivanof Bay, D-5), Chignik (A-5) quadrangle, section 23, T. 48 S., R. 66 W.; Latitude 56 deg. 00 min. 19 sec. N; Longitude 159 deg. 31 min. 43 sec. W. Collected by Tom Miller.
Clinocardium sp. "A"
Clinocardium sp. "B"
Mya (?Arenomya) cf. M.(?A.) elegans (Eichwald)
Indeterminate fragments
Sand dollar echinoid
78-AWs-113 (Cenozoic Loc. M7376) , Chignik , Outcrop 7.18 miles (11.5 kilometers) N 1 deg. W of VABM Hard (Ivanof Bay), section 25, T. 48 S., R. 66 W.; Chignik (A-5) quadrangle; Latitude 56 deg. 01 min. 45 sec. N; Longitude 159 deg. 07 min. 19 sec. W. Collected by Rick Wilson.
Clinocardium sp.
Cyclocardia sp.
?Spisula sp.
78-ADt-231 (Cenozoic Loc. M7377) , Chignik , Coarse sandstone and pebble-cobble conglomerate, 0.14 mile (0.22 kilometer) S 60 deg E of 2020, section 32, T. 47 S., R. 68 W., Chignik (A-6) quadrangle; Latitude 56 deg. 03 min. 44 sec. N; Longitude 159 deg. 07 min. 19 sec. W. Same locality as Marincovich 78-AM-12.
Fortipecten mollerensis MacNeil
Mya (?Arenomya) cf. M.(?A.) elegans (Eichwald)
Clinocardium sp.
Neptunea sp.