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Authors: Hahn, Gerhard , Blodgett, Robert B. , Gilbert, Wyatt G.
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Date: /1985
Title: First recognition of the Gshelian (Upper Pennsylvanian) trilobite Brachymetopos pseudometopina Gauri and Ramovs in North America; and a description of accompanying trilobites from west-central Alaska
59 , 1 , 27-31 , 1 fig.
Host: Journal of Paleontology :
Document Type: Article\Abst.\Chapter\report
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79WG113 , Mc Grath , Rocks at this locality are siliceous-cemented mudstone which is exposed as talus rubble. Locality coordinates: Lat. 62 deg. 05.4'N, Long. 155 deg. 11.3' W; NW1/4 NE1/4 NW1/4, sec. 17, T23N, R32W, McGrath A-5 quadrangle, 1:63,360 scale, 1954 edition. From interbedded fine-grained, siliceous-cemented, clastic rocks and limestones that form the uppermost beds within an unnamed argillite and chert unit, whose total thick probably exceeds 600 m (approx. 2,000 ft). Abundant bryozoans, brachiopods and pelecypods are also found at the same locality. (description from Hahn et al., 1985). [Dutro E&R report of 8/14/80 provides following description: Alaska, McGrath A-5 quad.; NW 1/4 NE 1/4 NW 1/4 sec. 17, T. 23 N., R. 32 W.; silicified limestone lens within uppermost part of unnamed chert-argillite unit. Collector: W. Gilbert, 1979.]
echinoderm debris, indet.
Brachymetopus pseudometopina Gauri and Ramovs
Pseudophillipsia? (Carniphillipsia) sp. A
Archeocidaris? sp.
fenestrate bryozoans, indet. (molds and casts)
Pseudophillipsia? (Carniphillipsia) sp. B
Polypora spp.
stenoporoid bryozoans, indet. (molds and casts)
Septacamera? sp.
Waagenites? sp.
Chonetinella sp.
chonetids, indet.
Anidanthus sp.
Terrakea? sp.
productoid fragments, indet.
Reticularia? sp.
martinioid indet.
punctate spiriferoid, indet.
Acanthopecten? sp.
pectenoid pelecypods, indet.
pelecypod fragments, indet.