Alaska Paleontological Database

Reference Detail

Report on Referred Fossils

Stratigraphic range:

Berriasian; Valanginian

Kinds of fossils:

Mollusks

Quadrangle or area:

Misheguk Mtn. quad., Alaska

Shipment No.:

A-64-17M

Referred by:

Tailleur, Irv L.

Report prepared by:

Jones, David L.

Date:

11/25/1964

This report covers several lots of Buchias collected by I. L. Tailleur and T. J. Miller from the Nuka River area, Northern Alaska. These collections are valuable because they shed light on the age of some of the species of Buchias due to the mutual occurrence of several forms. In particular, B. "sublaevis" (Imlay) can be accepted as a guide to the Valanginian because of its occurrence with B. crassicollis. The presence of Valanginian species in cyclically bedded "Turbidite" beds of the Okpikruak type (Loc. 64AMn250) proves that this type of sedimentation is not restricted to the Berriasian stage.

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64ATr206A (Mesozoic loc. M2447) , Misheguk Mtn , Putkuruk Creek, north flank Delong Mtns.

Buchia sp. indeter. (discarded)

64ATr206B (Mesozoic loc. M2447) , Misheguk Mtn , Putkuruk Creek, north flank Delong Mtns.

Buchia "sublaevis" (Imlay)

Buchia crassicollis (Keyserling)

64AMn250 (Mesozoic loc. M2447A) , Misheguk Mtn , 1,000 ft NE. of M2477.

Buchia cf. B. sublaevis (Keyserling)

Buchia cf. B. "sublaevis" (Imlay)

Buchia cf. B. crassicollis Keyserling

Belemnite fragment similar to form from coquinoid limestone

64AMn249 (Mesozoic loc. M2448) , Misheguk Mtn , Putkuruk Creek, N. flank Delong Mtns., 1/2 mi. E. (downstream) from M2447.

Buchia cf. B. uncitoides (Pavlow)