Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Cretaceous and Paleozoic
Kinds of fossils: mollusks
Quadrangle or area: Taylor Mtns. A-7, B-6, B-7, C-8, SW Alaska
Shipment No.: A-69-26M
Referred by: Condon, W. H.
Report prepared by: Jones, David L.
Date: 12/18/1969

This report covers fossils from scattered localites in the Tikchik Lakes region. Most specimens are not well preserved, particularly the abundant Inoceramus fragments, and some do not appear to be similar to any of the species known from southern Alaska. Hence, a precise age determination for these species is not warranted. Extensive recollecting from this area certainly would be justified with the hope of establishing a reliable biostratigraphic sequence. In addition to the fossils submitted by Condon, several collections made by BP geologists are also covered in this report.

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69ACo120 (Mesozoic loc. M5403) , Taylor Mts , Southwest nose of small hill, east of Allen R. In loose fragment of fine-grained graywacke with rubble of platy gwk. and nearly black siltstone. Bedding indeterminate.
large crinoid stem in argillite
69ACo186 (Mesozoic loc. M5404) , Taylor Mts , 3/8 mile NW of peak 2968. On ridge into saddle. In hornfelsed section, platy and limy, and with Fe-oxide. N 80 deg. W. / 50 deg. S bedding. (from transmittal sheet accompanying original E&R report) [Elder and Miller, 1991, p. 21, give the following locality description: "Taylor Mountains (B-6) 1:63,360 Quadrangle. 3/8 mi NW of peak 2968, saddle of Shotgun Hills. Elevation 2000 ft (610 m). Latitude 60 deg. 28.50' N; Longitude: 158 deg. 9.50' W; Township: 5N, 51W; Section: 25; SW/SW quarter; Collector: W.H. Condon, 1969. Field identifier: 69 ACo186."]; [USGS Mesozoic Locality: M5404. Alaska, Taylor Mountains (B-6) 1:63360 quadrangle. 3/8 mi NW of peak 2968, saddle of Shotgun Hills. Elevation 2,000 ft (610 m). Latitude: 60°28.50'N, longitude: 158°9.50'W. SW/4, SW/4, sec. 25, T5N, R51W. Collector: W.H. Condon, 1969. Field Identifier: 69ACo 186. (description from Elder and Box, 1992, p. 37)
Large flattended fragments of Inoceramus
69ACo187 (Mesozoic loc. M5405) , Taylor Mts , One small slab in rubble on peak 2698. Hornfels, red-brown with Fe-oxide, mainly thin bedded, med. to fine-grained graywacke. Bedding in area N 80 deg. W/65 deg. S., N. 60 deg. W./ 80 deg. S. [Elder and Miller, 1991, p. 21, give following locality description: "Taylor Mountains (B-6) 1:63,360 quadrangle. Rubble on peak 2698 south of King Salmon River. Elevation 2650 ft (808 m). Latitude: 60 deg. 16.00'N; Longitude: 158 deg. 7.00'W; Township: 2N; Range 51W; Section 5; SW quarter; Collector: W.H. Condon, 1969. Field Identifier: 69ACo187."]
Fragments of Inoceramus with very fine ribs
69ACo233 (Mesozoic loc. M5406) , Taylor Mts , High on south end of NW-trending cross ridge on main NE-trending ridge; 1/2 mile NE of hill 1980. Cross ridge is expression of resistant med. and fine-grained graywacke bedded N. 50 deg. W./65 deg. W. Fossils found in thin (1-foot) conglomeratic layer. (from original E&R report) [Elder and Miller, 1991, p. 20 give following description: "Taylor Mountains (B-7) 1:63,360 Quadrangle. On NE trending ridge NW of Kogrukluk River, NE of hill 1980. Elevation 1950 ft (595 m). Latitude: 60 deg. 25.00' N; Longitude: 158 deg. 32.00' W; Township: 4N; Range: 53W; Section 19; SE/SE quarter; Collector: W.H. Condon, 1969. Field Identifier: 69ACo233."]; [USGS Mesozoic Locality: M5406. Alaska, Taylor Mountains (B-7) 1:63360 quadrangle. On NE trending ridge NW of Kogrukluk River, NE of hill 1980. Elevation 1,950 ft (595 m). Latitude: 60°25.00'N, longitude: 158°32.00'W. SE1/4, SE1/4, sec. 19, T4N, R53W. Collector: W. H. Condon, 1969. Field Identifier: 69ACo233. (description from Elder and Box, 1992, p. 37)]
Large, coarse-ribbed Inoceramus
69ACo238 (Mesozoic loc. M5407) , Taylor Mts , Shallow canyon cut by west flowing second-order tributary to Tikchik River and south of hill 1109. In indurated graywacke of fine- to very fine grain size, and med. to dk. gray siltstone. N. 60 deg. W./45 deg. W. Laminated and cross bedded. Roll casts and cone-in-cone pressure marks are common. Fossils preserved by marcasite and very fragile. (from transmittal sheet submitted for original E&R). [Elder and Miller, 1991, p. 21, give following locality description: "Taylor Mountains (B-7) quadrangle. Shallow canyon cut by west flowing tributary to Tikchik River. Elevation 1000 ft (305 m). Latitude: 60 deg. 17.00'N; Longitude: 1 58 deg. 31.00' W; Township: 2 N; Range: 53 W; Section: 8; SE quarter; Collector: W.H. Condon, 1969. Field Identifier: 69ACo238."]
worm tube
69AHr147 (Mesozoic loc. M5408) , Taylor Mts , North bank, middle headwater of tributary to Gemuk River, entering from west. Near sharp bend to south upstream. East side, Gemuk Mountain (in Bethel quad.). In contorted, thin-bedded shale, minor graywacke. ."][Elder and Miller, 1991, p. 24, give following locality description: "East side of Gemuk Mtn. Middle head water of tributary to Gemuk River. Elevation 1800 ft (549 m). Latitude: 60 deg. 37.50' N; Latitude: 159 deg. 59.00' W.; Township: 6N; Range: 55W; Section: 8; SW quarter; Collector: J. Hoare, 1969. Field Identifier: 69AHr147."]; [USGS Mesozoic Locality: M5408. Alaska, Taylor Mountains (C-8) 1:63360 quadrangle. East side of Gemuk Mtn. Middle head water of trib. to Gemuk River. Elevation 1,800 ft (549 m). Latitude: 60°37.50'N, longitude: 158°59.00'W. SW1/4, sec. 8, T6N, R55W. Collector: J. Hoare, 1969. Field Identifier: 69AHr147. (description from Elder and Box, 1992, p. 37).]; [Lat. 60.6232, Long. 158.9833, graywacke-argillite (description from Karl et al., 2011)]
Inoceramus sp.
small, open-coilled ammonite
BP-NUS556M (Mesozoic loc. M2693) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 quad. Lat. 60 deg. 08.2' N., Long. 158 deg. 39' W. NE of Allen River. 600 ft. elevation. Coll. BP Co. Field No. NUS 556."]
Crinoid columnal
Brachiopod scraps
BP-NUS1506M (Mesozoic loc. M2692) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 09.5' N., Long. 158 deg. 39.8' W., S. tip of knoll overlooking Allen River. Coll. BP Co. Field No. NUS 1506."]
Productid brachs
Crinoid fragments
BP-NUS88M (Mesozoic loc. M2694) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 04.7' N., Long. 158 deg. 42.5' W. SW flank of Ongutvak Mt. N. of Lake Chauekuktule. Coll. BP Co. Field No. NUS 88."]
Brachiopod fragments
BP-NUS82 (Mesozoic loc. M2695) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 05.2' N., Long. 158 deg. 44.2' W. SW flank Ongutvak Mt. Coll. BP Co. Field No. NUS 82."]
Crinoid columnals
Productid brachs
BP-NUS131M (Mesozoic loc. M2698) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 15' N., Long. 157 deg. 26' W. N. bank of King Salmon River. Coll. BP Co. Field No. NUS 131."][Elder and Miller, 1991, p. 22, give following locality description: "Taylor Mountains (B-4) 1:63,360 quadrangle. North bank of King Salmon River. Elevation 600 ft (183 m). Latitude: 60 deg. 27.80 N; Longitude: 156 deg. 8.80' W; Township: 2N; Range: 47W; Section: 21; NE quarter; Collector: British Petroleum Corp., 1963. Field Identifier: NUS131."]
Inoceramus scrap
BP-NUS118M (Mesozoic loc. M2697) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 16.7' N., Long. 158 deg. 07' W. Head of E. flowing tributary to King Salmon River. 2,000 ft. elevation. Coll. BP Co. Field No. NUS 118."][Elder and Miller, 1991, p. 21, give following locality description: "Taylor Mountains (B-6) 1:63,360 quadrangle. Head of E flowing tributary to King Salmon River. Elevation 1400 ft (427 m). Latitude: 60 deg. 16.70' N; Longitude: 158 deg. 7.00' W; Township: 2N; Range: 51W; Section: 10; Center; Collector: British Petroleum Corp., 1963. Field identifier: NUS 118."]
Inoceramus scrap
BP-NUS529M (Mesozoic loc. M2696) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 07.5' N., Long. 158 deg. 06' W. NE of Tikchik Mt. Coll. BP Co. Field No. NUS 529."][Elder and Miller, 1991, p. 21, give following locality description: "Taylor Mountains (B-6) 1:63,360 quadrangle. NE of Tikchik Mountain. Elevation 1300 ft (396 m). Latitude: 60 deg. 7.50' N; Longitude: 158 deg. 6.00' W; Township: 1N; Range: 51W; Section 35; Mid-south line; Collector: British Petroleum Corp., 1963. Field Identifier: NUS529.
Inoceramus scrap.
BP-NUS616M (Mesozoic loc. M2699) , Taylor Mts , No description given in E&R report. [USGS Mesozoic catalogue for Menlo Park provides following description: "Taylor Mts. 1:250,000 Quad. Lat. 60 deg. 27.8' N., Long. 156 deg. 08.8'W. W. of middle fork of Mulchatna River. Coll. B.P. Co. Field Number NUS 616."][Elder and Miller, 1991, p. 22, give following locality description: Taylor Mountains (A-1) 1:63,360 quadrangle. East of Mosquito River. Elevation 800 ft. (244 m). Latitude: 60 deg. 27.80' N; Longitude: 156 deg. 8.80'W; Township: 4N; Range: 40W; Section 2; East line; Collector: British Petroleum Corp., 1963. Field Identifier: NUS616."]
Inoceramus sp.