Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Upper Triassic
Kinds of fossils: Pelecypods
Quadrangle or area: Pt. Hope
Shipment No.: A-63-29M
Referred by: Tailleur, Irv L.
Report prepared by: Silberling, Norman J.
Date: 02/05/1964

Though by the nature of the material the identifications are mostly quite inexact, these collections are significant in that they strongly suggest the condensed, but depositonally continuous, nature of the Shublik Formation. Depending on the age limits assumed for the Halobias in the lower beds, the 70 feet of strata from 22 feet down to 92 feet represent something between one and two stages of the Upper Triassic.

A statement explaining my current usage of specific and subspecific names within the genus Monotis is attached.

Many thanks for collecting this section for me.


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Brief statement of problem and remarks (from collector):
Detailed succession of fossils in Shublik Fm. for information on the faunal distribution in the west.
User Note module to be added
63ATr330 - 22-24 ft (Mesozoic loc. M2156) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis cf. M. ochotica
63ATr330 - 27 ft (Mesozoic loc. M2157) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis cf. M. ochotica
63ATr330 - 33 ft (Mesozoic loc. M2158) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis sp. indet. -- but either M. ochotica or M. subcircularis
63ATr330 - 37 ft (Mesozoic loc. M2159) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis cf. M. subcircularis
63ATr330 - 40 ft (Mesozoic loc. M2160) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis cf. M. scutiformis
63ATr330 - 45 ft (Mesozoic loc. M2161) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis scutiformis typica
Halobia aff. H. ornatissima
63ATr330 - 48 ft (Mesozoic loc. M2162) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Monotis scutiformis subsp.
63ATr330 - 54 ft (Mesozoic loc. M2163) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Halobia aff. H. ornatissima
63ATr330 - 63 ft (Mesozoic loc. M2164) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Indeterminate pelecypod
63ATr330 - 66 ft (Mesozoic loc. M2165) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Halobia cf. H. ornatissima
63ATr330 - 77 ft (Mesozoic loc. M2166) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Halobia sp. indet. -- but of the H. brooksi-H. austriaca group
63ATr330 - 92 ft (Mesozoic loc. M2167) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Halobia cf. H. austriaca
63ATr330 - 122 ft (Mesozoic loc. M2168) , Point Hope , No Data; Grant-Mackie and Silberling, 1990, p. 254 provide the following locality data: USGS Mesozoic loc. M2157. Northern Alaska; Pt. Hope 1:250,000 quadrangle; single bed within partial section of Otuk Formation in low cuts on south bank of Kukpuk River. Coll.: I. L. Tailleur, 1963, field no. 63ATr330. Subterrane transitional between Endicott Mountains and North Slope subterranes of Arctic Alaska terrane. (from p. 254)
Indeterminate halobiid