Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Upper Devonian
Kinds of fossils: Brachiopods
Quadrangle or area: Survey Pass D-6 quadrangle, Northern AK
Shipment No.: A-78-27
Referred by: Grybeck, Donald
Report prepared by: Dutro, J. Thomas, Jr.
Date: 03/01/1979

This single collection is from a shelly layer composed almost entirely of brachiopods. The occurrence together of CYRTOSPIRIFER and SINOTECTIROSTRUM sp. indicates a Late Devonian (Famennian) age.

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78AMM016A (9987-SD) , Survey Pass , Alaska, Survey Pass D-6 quad.; T. 30 N., R. 14 E.; 67 deg. 58 min. 56 sec. N., 155 deg. 45 min. 03 sec. W.; rubble at about 4220 ft., 2 m below knob and 20 m above center of saddle; interbedded brown weathering calcareous sandstone and shale. Collector: M. Mullen, 1978.
echinoderm debris, indet.
bryozoan fragments, indet.
Sinotectirostrum sp.
Cyrtospirifer sp.