Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Pleistocene
Kinds of fossils: Mollusks, barnacle, bone fragments
Quadrangle or area: North Slope region, Alaska
Shipment No.: A-79-6M
Referred by: Carter, L. David
Report prepared by: Marincovich, Louie , Jr.
Date: 05/24/1979

This report deals with 23 collections of megafossils from 17 localities in the Gubik Formation of the Alaskan North Slope region. Field localities are listed below in numerical order. The Project Number is 9310--02009, NPRA Land Use Study.

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78ACrII13 (Cenozoic loc. M7339) , Teshekpuk , Shells from bed of thaw lake, associated with shale and other mammal bones.
Astarte borealis Schumacher
78ACrII15 (Cenozoic loc. M7340) , Teshekpuk , Lake bluff 35 feet high on north shore of Teshekpuk Lake, consisting of 1 to 8 feet of gray to blue clay overlain by 12 to 19 feet of gravelly sand, and capped by 15 feet of very fine sand. Shells collected from the lower two unites.
Astarte borealis Schumacher
Astarte sp.
Hiatella arctica (Linnaeus)
Serripes groenlandicus (Bruguiere)
Clinocardium ciliatum (Fabricius)
Mya (Mya) pseudoarenaria Schlesch
Beringius sp. - fragmet
Polinices sp. - fragment
Buccinum sp. - fragment
Neptunea (Neptunea) cf. N. (N.) heros heros (Gray)
?Plicifusus sp. - fragment
Neptunea (Neptunea) cf. N. (N.) borealis (Philippi) - worn fragments
78ACrII17 (Cenozoic loc. M7341) , Harrison Bay , Coastal bluffs 10 to 15 feet high consisting of sand with some granules and pebbles.
Mya sp. - fragment
Macoma sp. - juveniles
?Serripes sp. - fragment
78ACrII24 (Cenozoic loc. M7342) , Barrow , Thaw lake bluff 20 feet high consisting of very fine sand with scattered granules and pebbles. Shells from lower 12 feet of bluff.
Mya (Mya) pseudoarenaria Schlesch
Astarte sp. - juveniles
?Serripes sp. - worn fragment
Natica (Cryptonatica) clausa Broderip & Sowerby
78ACrII36B1 (Cenozoic loc. M7343) , Harrison Bay , Coastal bluff 20 feet high consisting of 1 foot of silt and caly overlain by 9 feet of sand to gravelly sand, and capped by 10 feet of fine to very fine sand with silt interbeds. Sample localities [78ACrII36B1, D2, D3, F] as follows: B1 is 3 feet above base of bluff; D2 and D3 are 6 feet above base of bluff; F is at various levels in the gravelly sand.
Hiatella arctica (Linnaeus)
Mya sp. - fragment
Serripes groenlandicus (Bruguiere)
Clinocardium ciliatum (Fabricius)
Macoma balthica (Linnaeus)
Liocyma fluctuosa (Philippi)
Indeterminate specimens
Natica (Cryptonatica) clausa Broderip & Sowerby
Amauropsis islandica (Gmelin)
Polinices new species?
Tachyrhynchus sp. - worn fragment
Margarites groenlandicus (Gmelin) - worn
Obesotoma leavigata (Dall)
Admete sp. - worn fragment
Buccinum sp. - fragments
Oenopota sp.
?Oenopota sp. - worn
Neptunea sp. - fragments juvenile
78ACrII36D2 (Cenozoic loc. M7344) , Harrison Bay , Coastal bluff 20 feet high consisting of 1 foot of silt and caly overlain by 9 feet of sand to gravelly sand, and capped by 10 feet of fine to very fine sand with silt interbeds. Sample localities [78ACrII36B1, D2, D3, F] as follows: B1 is 3 feet above base of bluff; D2 and D3 are 6 feet above base of bluff; F is at various levels in the gravelly sand.
Serripes groenlandicus (Bruguiere)
Astarte borealis (Schumacher)
Macoma balthica (Linnaeus)
Polinices new species?
Obesotoma cf. O. leavigata (Dall)
Buccinum sp. - fragment
78ACrII36D3 (Cenozoic loc. M7345) , Harrison Bay , Coastal bluff 20 feet high consisting of 1 foot of silt and caly overlain by 9 feet of sand to gravelly sand, and capped by 10 feet of fine to very fine sand with silt interbeds. Sample localities [78ACrII36B1, D2, D3, F] as follows: B1 is 3 feet above base of bluff; D2 and D3 are 6 feet above base of bluff; F is at various levels in the gravelly sand.
?Macoma balthica (Linnaeus) - worn fragments
Liocyma fluctuosa (Gould)
?Macoma sp. - fragments
Obesotoma sp. - fragment
Naticid species - fragments
78ACrII36F (Cenozoic loc. M7346m) , Harrison Bay , Coastal bluff 20 feet high consisting of 1 foot of silt and caly overlain by 9 feet of sand to gravelly sand, and capped by 10 feet of fine to very fine sand with silt interbeds. [Four collections, 78ACrII36B1, D2, D3, F are from the same locality] B1 is 3 feet above base of bluff; D2 and D3 are 6 feet above base of bluff; F is at various levels in the gravelly sand.
Serripes groenlandicus (Bruguiere)
Mya (Mya) truncata (Linnaeus)
Astarte borealis Schumacher
Macoma balthica (Linnaeus)
Liocyma fluctuosa (Gould)
Clinocardium sp. - juvenile
?Acteocina sp. - fragments
Amauropsis islandica (Gmelin)
Polinices (Euspira) pallidus (Broderip & Sowerby)
Natica (Cryptonatica) clausa Broderip & Sowerby
Polinices new species?
Buccinum sp. - fragments
Neptunea sp. - fragments
Obesotoma cf. O. leavigata (Dall) - worn
Margarites cf. M. groenlandicus (Gmelin) - worn
78ACrII59 (Cenozoic loc. M7347) , Harrison Bay , River bar on Fish Creek.
78ACrII60J (Cenozoic loc. M7348) , Harrison Bay , River bluff on Fish Creek, 75 to 80 feet high, consisting of 6 to 10 feet of marine mud overlain by 30 to 35 feet of marine sand to gravelly sand, 20 feet of fluvial (?) pebbly sand and 10 to 20 feet of eolian sand. Samples [78ACrII60J, 60K, 60L] collected as follows: 60J is float from lower 40 feet of bluff face; 60K is from marine sand about 9 feet above river level; 60L is from sand 27 feet above river level.
Hiatella arctica (Linnaeus)
Cyrtodaria kurriana (Dunker)
Serripes groenlandicus (Bruguiere)
Astarte borealis (Schumacher)
Clinocardium sp. - fragments
Cyclocardia crebricostata (Krause)
Mya (Mya) cf. M. (M.) pseudoarenaria Schlesch - fragments
Macoma (Macoma) calcarea (Gmelin)
Pandora sp. - juvenile
Axinopsida orbiculata (Sars)
Amauropsis islandica (Gmelin)
Natica (Cryptonatica) clausa Broderip & Sowerby
Littorina cf. L. sitchana Philippi
Obesotoma cf. O. leavigata (Dall)
Turridae sp. - small, worn
Plicifusus kroyeri (Moeller)
Colus spitzbergensis (Reeve)
Epitonium greenlandicum (Perry)
Neptunea (Neptunea) martyniana beringiana (Middendorff)
Neptunea (Neptunea) heros heros (Gray)
Neptunea (Neptunea) lyrata lyrata (Gmelin) or N. (N.) martyniana martyniana Nelson MS name.
?Volutipsius sp. - very large, worn specimens
?Colus sp. - fragment, worn
Buccinum sp. - juvenile, fragmented
?Oenopota sp.
78ACrII60K (Cenozoic loc. M7349) , Harrison Bay , River bluff on Fish Creek, 75 to 80 feet high, consisting of 6 to 10 feet of marine mud overlain by 30 to 35 feet of marine sand to gravelly sand, 20 feet of fluvial (?) pebbly sand and 10 to 20 feet of eolian sand. Samples [78ACrII60J, 60K, 60L] collected as follows: 60J is float from lower 40 feet of bluff face; 60K is from marine sand about 9 feet above river level; 60L is from sand 27 feet above river level.
Astarte borealis Schumacher
Astarte sp.
Cyclocardia crebricostata (Krause)
Hiatella arctica (Linnaeus)
Cyrtodaria kurriana (Dunker)
Clinocardium ciliatum (Fabricius)
Serripes groenlandicus (Bruguiere)
Mya sp. - fragments
Liocyma fluctuosa (Philippi)
Axinopsida orbiculata (Sars)
Nuculana cf. N. minuta (Fabricius)
Macoma (Macoma) cf. M. (M.) calcarea (Gmelin) - fragments
Neptunea (Neptunea) martyniana beringiana (Middendorff)
Neptunea (Neptunea) heros heros (Gray)
Littorina cf. L. sitchana Philippi
Natica (Cryptonatica) clausa Broderip & Sowerby
Amauropsis islandica (Gmelin)
?Polinices new species
Obesotoma sp. - worn, broken
Turridae sp. - fragment
Neptunea sp. - fragment
Plicifusus kroyeri (Moeller)
Boreotrophon sp. - worn fragment
Buccinum sp. - fragment
Trichotropis bicarinata (Sowerby)
Admete sp.
?Plicifusus sp.
Retusa umbilicata (Montagu)
Trichotropis borealis Broderip & Sowerby
modern rodent limb bone (femur)
78ACrII60L (Cenozoic loc. M7350) , Harrison Bay , River bluff on Fish Creek, 75 to 80 feet high, consisting of 6 to 10 feet of marine mud overlain by 30 to 35 feet of marine sand to gravelly sand, 20 feet of fluvial (?) pebbly sand and 10 to 20 feet of eolian sand. Samples [78ACrII60J, 60K, 60L] collected as follows: 60J is float from lower 40 feet of bluff face; 60K is from marine sand about 9 feet above river level; 60L is from sand 27 feet above river level.
Cyrtodaria kurriana (Dunker)
Hiatella arctica (Linnaeus)
Mya sp. - fragments
Clinocardium ciliatum (Fabricius)
Serripes groenlandicus (Bruguiere)
Cyclocardia cf. C. crebricostata (Krause)
Astarte sp. - juveniles and fragments
Liocyma fluctuosa (Philippi)
Macoma (Macoma) cf. M. (M.) calcarea (Gmelin)
Macoma balthica (Linnaeus)
Axinopsida orbiculata (Sars)
Littorina cf. L. sitchana Philippi
Natica (Cryptonatica) clausa Broderip & Sowerby
Amauropsis islandica (Gmelin)
?Polinices new species
Obesotoma cf. O. leavigata (Dall)
Admete sp. - fragment
Oenopota sp.
Margarites sp.
Buccinum sp. - fragments
Colus spitzbergensis (Reeve)
Plicifusus kroyeri (Moeller)
Plicifusus sp.
Neptunea (Neptunea) cf. N. (N.) heros heros (Gray)
Neptunea (Neptunea) cf. N. (N.) martyniana beringiana (Middendorff) - fragments
Neptunea (Neptunea) cf. N. (N.) lyrata leffingwelli (Dall)
Boreotrophon sp. - worn specimen
Retusa umbilicata (Montagu)
Barnacle: one fragment