Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Permian
Kinds of fossils: Invertebrates
Quadrangle or area: Mt. Michelson Quad., NE Alaska
Shipment No.: A-70-10
Referred by: Reiser, H. N.
Report prepared by: Dutro, J. Thomas, Jr. , Bieler, David
Date: 01/27/1971

This report covers four collections from the Echooka Member of the Sadlerochit Formation. All contain elements of the Arctic Permian fauna (see report to Detterman, 1/25/71). The age is eithr late Early Permian or early Late Permian.


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Brief statement of problem and remarks (from collector):
Identification of formation and zones represented will contribute to the stratigraphic and structural interpretation of the area and additionally permit large scale regional geologic interpretations and integration with Canadian work.
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70ARr 245 (24401-PC) , Mt Michelson , Permian brachs from Sadlerochit Formation--from deep gorge in breached anticlinal fold in Marsh Fork. Sheared Lisburne Limestones overlain by Sadlerochit. Fossils roughtly 20 feet abvoe contact. Sec. 23, T. 4 S., R. 25 E. West side of River.
Zoophycos sp.
Megousia weyprechti (Toula) (r)
productoid fragments, indet.
worm tube, indet.
70ARr 276C (24402-PC) , Mt Michelson , Brachs and bryozoan approximately 50 feet above base of Sadlerochit. Sec. 16, T. 2 S., R. 25 E.
sponge spicules, indet.
fenestrate bryozoans, indet. (c)
stenoporoid bryozoans, indet. (a)
Muirwoodia? sp.
Liosotella? sp. (r)
Megousia harlandi (Gobbett)
Martinia? sp.
pelecypod fragment, indet.
70ARr 276D (24403-PC) , Mt Michelson , Collection 276D is from lime bed 15 feet above 276C.
echinoderm debris, indet.
bryozoan debris, indet.
Liosotella cf. L. pseudohorrida (Wiman)
Horridonia sp.
Spiriferella sp.
70ARr 311 (24404-PC) , Mt Michelson
echinoderm debris, indet.
Waagenoconcha cf. W. irginae (Stuckenberg)
Muirwoodia? sp.
productoid fragments, indet.
Spiriferella cf. S. saranae (de Verneuil)
Neophricadothyris cf. N. asiatica (Chao)