Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Jurassic and Cretaceous
Kinds of fossils: Mollusks
Quadrangle or area: As listed below, Peninsula
Shipment No.: A-78-18M-A
Referred by: Detterman, Robert L.
Report prepared by: Jones, David L. , Miller, John W.
Date: 04/27/1978

Continued from A-78-18M

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77ADt27 (Mesozoic loc. M6910) , Sutwik Island , Sutwik Island (D-5) Quadrangle. Latitude 56 deg. 56 min. 23sec. N; Longitude 157 deg. 23 min. 27 sec. W. Section 34, T. 37 S., R. 51 W., 5.1 mile N. 8 deg. E. of mouth of Northeast Creek. Naknek Formation, dark siltstone sequence. Coll. R. L. Detterman, 1977.
Indeterminate ammonite
Belemnite fragment
Indeterminate gastropod
Buchia concentrica (Sowerby)
77-ADt-28 (Mesozoic loc. M6911) , Sutwik Island , Sutwik Island (D-5) Quadrangle. Same as M6910 except "about 0.5 mile SE along ridge". Naknek Formation, massive dark gray sandy siltstone about 300 feet stratigraphically below Dt-27.
Buchia concentrica (Sowerby)
Oxytoma sp.
Indeterminate Gastropod
Barnacle fragment
77-ADt-29A (Mesozoic loc. M6912) , Sutwik Island , Sutwik Island (D-2) Quadrangle. Same as M6911 except "about 0.1 mile east along ridge". About 50 feet lower than M6911. Naknek Formation, massive coarse sandstone and grit.
Pholadomya sp.
77-ADt-80 (Mesozoic loc. M6913) , Stepovak Bay , Stepovak Bay (D-4) Quadrangle. Latitude 55 deg. 57 min. 28 sec. N; Longitude 159 deg. 15 min. 10 sec. W. Section 7, T. 49 S., R. 64 E., 5.2 miles N 55 deg. W of Perryville. Naknek Formation, medium-bedded feldspathic sandstone.
Buchia cf. B. rugosa (Fischer)
77ADt113 (Mesozoic loc. M6914) , Chignik , Chignik (B-2) Quadrangle. lat. 56 deg. 28'12" N., long. 158 deg. 31'17On ridge south of Thompson Valley, 4.5 miles N. 72 deg. W. of stream mouth. Naknek Formation, massive grit and sandstone. Co... R. L. Detterman, 1977.
Perisphinctinid ammonite
77-ADt-115 (Mesozoic loc. M6915) , Chignik , Chignik (B-2) Quadrangle. Same general locality as M6914 except "0.3 mile southeast along ridge". Naknek Formation, interbedded siltstone and sandstone.
Buchia rugosa (Fischer)
Meleagrinella sp.
77ADt119 (Mesozoic loc. M6916) , Chignik , Chignik (B-3) Quadrangle. Latitude 56 deg. 18 min. 42 sec. N; Longitude 158 deg. 41 min. 35 sec. W. Section 5, T. 45 S., R. 60 W., 3.5 miles S. 85 deg. W. of Chignik Lagoon Cannery. Naknek Formation, interbedded thin sandstone and siltstone. Coll. R. L. Detterman, 1977.
Indeterminate ammonite
Buchia mosquensis (von Buch)
77ADt120 (Mesozoic loc. M6917) , Chignik , 2.5 miles S. 75 deg. W. of Chignik Lagoon Cannery on same ridge as loc. M6916. Naknek Formation, siltstone and limestone about 400 feet stratigraphically higher than ADt-119. Coll. by R. L. Detterman, 1977.
Indeterminate ammonite
Buchia concentrica (Sowerby)
Oxytoma sp.
77ADt121 (Mesozoic loc. M6918) , Chignik , Same location as M6917 except 0.3 mile east along ridge and about 180-200 feet higher. Naknek Formation, feldspathic sandstone. Coll. R. L. Detterman, 1977.
Indeterminate ammonite
Lima sp.
Oxytoma sp.
77-ADt-132 (Mesozoic loc. M6919) , Chignik , Chignik (B-2) Quadrangle. Latitude 56 deg. 19 min. 45 sec. N; Longitude 158 deg. 34 min. 30 sec. W. Section 33, T. 44 S., R. 59 W. Seacliff NW side of Chignik Lagoon. 1.4 miles NE of Cannery. Naknek Formation, dark siltstone with minor sandstone.
Buchia concentrica (Sowerby)
Oxytoma sp.
77-ADt-136 (Mesozoic loc. M6920) , Chignik , Chignik (B-3) Quadrangle. Latitude 56 deg. 17 min. 05 sec. N; Longitude 158 deg. 46 min. W. Section 14, T. 45 S., R. 61 W., 2 miles north of Chignik Lake Village. Naknek Formation, siltstone.
Lima sp.
77ARh40A (Mesozoic loc. M6921) , Chignik , Chignik (B-2) Quadrangle. Latitude 56 deg. 22 min. 44 sec. N; Longitude 158 deg. 30 min. 12 sec. W. Section 13, T. 44 S., R. 59 W., sea cliff 1.3 miles north of triangulation station Chignik Bay West Base. Naknek Formation, interbedded siltstone and silty gray sandstone. Coll. R. L. Detterman, 1977.
Ammonite
Cylindroteuthis sp.
Buchia concentrica (Sowerby)
77-ARh-53H (Mesozoic loc. M6922) , Chignik , Chignik (B-3) Quadrangle. Latitude 56 deg. 20 min. 30 sec. N; Longitude 158 deg. 52 min. 40 sec. W. Section 27, T. 44 S., R. 61 W., ridge north of Chignik Lake. 1.9 miles N 57 deg. E of mouth of Bearshin Creek. Naknek Formation, dark siltstone.
Buchia concentrica (Sowerby)
77-ARh-76B (Mesozoic loc. M6923) , Chignik , Chignik (D-1) Quadrangle. Latitude 56 deg. 51 min. 56 sec. N; Longitude 158 deg. 03 min. 30 sec. W. Section 29, T. 38 S., R. 55 W., 3.5 miles S 67 deg. W of Vent Mountain. Naknek Formation, massive, fine-grained sandstone.
Buchia concentrica (Sowerby)
Pholadomya sp.
77-ARh-78B (Mesozoic loc. M6924) , Chignik , Chignik (D-1) Quadrangle. Latitude 56 deg. 52 min. 25 sec. N; Longitude 158 deg. 01 min. 45 sec. W. Section 21, T. 38 S., R. 55 W., 4.4 miles N 80 deg. E of Vent Mountain. Naknek Formation, coarse feldspathic sandstone.
Buchia concentrica (Sowerby)
77-ARh-80C (Mesozoic loc. M6925) , Sutwik Island , Sutwik Island (D-6) Quadrangle. Latitude 56 deg. 52 min. 53 sec. N; Longitude 157 deg. 59 min. 40 sec. W. Section 26, T. 38 S., R. 55 W., 3.5 miles N 80 deg. W of mouth of Hidden Creek. Naknek Formation, fine-grained gray, thin sandstone.
Cylindroteuthis sp.
Buchia concentrica (Sowerby)
Oxytoma sp.