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Authors: Baxter, Mary E. , Blodgett, Robert B.
Editors:
Date: /1994
Title: A new species of Droharhynchia (Brachiopoda) from the Lower Middle Devonian (Eifelian) of west-central Alaska
68 , 6 , 1235-1240 , 3 figs.
Host: Journal of Paleontology :
Document Type: Article\Abst.\Chapter\report
Annotation: A new species of the genus Droharhynchia Sartenaer is established from lower Eifelian strata of west-central Alaska and the northwestern Brooks Range of Alaska. Droharhynchia rzhonsnitskayae n. sp. occurs in the Cheeneetnuk Limestone of the McGrath A-5 quadrangle, west-central Alaska, and the Baird Group of the Howard Pass B-5 quadrangle, northwestern Alaska. These occurrences extend the lower biostratigraphic range of both the genus and the subfamily Hadrorhynchiinae into the Eifelian. They also suggest close geographic proximity of the Farewell terrane of southwestern and west-central Alaska and the Arctic Alaska superterrane of northern Alaska during Devonian time.
UserNote
79RB9 (10062-SD) , Mc Grath , Long. 155 deg. 09'23"W, Lat. 62 deg. 04'33"N. NE1/4, NW1/4, NE1/4, NW1/4 sec. 21, T23N, R32W. Silicified fossil horizon, approximately 3.0 m (10 ft) thick, the top of which is 81.7 m (268 m) below the top of the Cheeneetnuk Limestone. (description from Rigby and Blodgett, 1983, p. 774)
Droharhynchia rzhonsnitskayae n. sp.
50ABe53 (3370-SD) , Howard Pass , Locality is from a 30-ft-thick interval of fine-grained, massively silicified dolostone whose location is shown as an unnumbered fossil locality in the Ds unit on sheet 5 of Tailleur et al. (1966). On a current topographic base map this corresponds to a location approximately in the center of NW1/4, NE1/4, sec. 13, T11S, R29W, Howard Pass B-5 quadrangle. Its geographic coordinates are latitude 68 deg. 29'43"N and longitude 158 deg. 34'46"W. (description from Baxter and Blodgett, 1994, p. 1235)
Droharhynchia rzhonsnitskayae n. sp.
three other distinct brachiopod species
several rugose coral species