Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Middle Devonian?
Kinds of fossils: Brachiopods
Quadrangle or area: Baird Mtns. quad.
Shipment No.: A-83-27b
Referred by: Harris, Anita G.
Report prepared by: Dutro, J. Thomas, Jr.
Date: 10/21/1983

This report covers 3 collections, turned over to me by Anita Harris. All three collections are possibly Middle Devonian, with varying degrees of certainty. The carbonate rock has been metamorphosed and the shell material is recrystallized, so that original shell structures are obliterated. However, general shell shape and larger morphologic features are retained. This permits some educated guesses as to the brachiopod genera present. The collections are discussed below, the most convincing listed first. Collections retained.

Referred by Anita G. Harris (for Sue Karl)

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83ATr10D (10817-SD) , Baird Mts , Alaska, Baird Mtns. C-4 quad.; 67 deg. 44.0' N., 160 deg. 59.6' W.; SE 1/4 sec. 18, T. 27 N., R. 10 W.; Baird Group metacarbonate with large shells. Collector: I.L. Tailleur, 1983. (description from Dutro E&R report of 10/21/83) [Ganley and Harris E&R E&R report of 12/20/83 provide following description: Metalimestone from Baird Group, lat. 67 deg. 44 min. 00 sec., long. 59.5 min. 00 sec.; Devonian age?]
number of fragments of a thick-shelled brachiopod and one fairly complete shell that is almost certainly Stringocephalus sp.
83ADn110B (10818-SD) , Baird Mts , Alaska, Baird Mtns. C-4 quad.; 67 deg. 43.3' N., 160 deg. 46.0' W.; SE 1/4 sec. 19, T. 27 N., R. 9 W.,; at top of measured section at about 1980 ft. elevation; carbonate-clastic unit in Nakolik River drainage. Collector: J. Dumoulin, 1983.
several distorted shells of a large Schizophoria
many indeterminate fragments of bivalves
indeterminate recrystallized masses that may have been stromatoporoids or corals
8-4-83-D2 (10819-SD) , Baird Mts , (=83ADn109A) Alaska, Baird Mtns. D-4 quad.; 67 deg. 45.2' N., 160 deg. 42.29' W.; SW 1/4 sec. 9, T. 27 N., R. 9 W.; near base of uppermost cliff, elev. 2200 ft., at "the castle"; unnamed carbonate-clastic unit. Collector: Anita Harris, 1983.
badly abraded brachial valve of a medium-sized spiriferoid brachiopod