Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Permian and Mississippian
Kinds of fossils: Invertebrates
Quadrangle or area: Mt. Michelson and Demarcation Point Quads.
Shipment No.: A-68-11
Referred by: Tailleur, Irv L.
Report prepared by: Dutro, J. Thomas, Jr.
Date: 11/19/1968

Three of the four collections in this shipment contain definite Permian fossils. The fourth collection (68ATo2) consists only of an indeterminate mold of a pelecypod. One collection (68ATo16) also includes a portion of phaceloid lithostrotionoid coral colony in a dark limestone matrix completely unlike the sandstone of the other rocks in the collection. The coral undoubtedly came from the Lisburne Group and is Mississippian. The collections are being retained.

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68ATr9 , Demarcation Point , Demarcation Point Quadrangle; west side of gap on Aichilik River; 69 deg. 30.9' N.; 143 deg. 03.0' W.; from calcareous zone near possibly gradational contact with underlying Lisburne Group. Collector: I.L. Taileur, 1968.
Megousia sp.
Yakovlevia sp. (=Muirwoodia)
dictyoclostid brachiopod, indet.
Spiriferella sp.
pelecypod prisms, indet.
68ATo1 , Mt Michelson , Mt. Michelson quadrangle; Cache Creek (alluvium); 69 deg. 25.4'N.; 145 deg. 56'W. Collector: H. Tourtelot, 1968.
orthotetid brachiopod, indet.
Chonetinella sp. (abundant)
rhynchonelloid brachiopod, indet.
pelecypod prisms, indet.
68ATo2 , Mt Michelson , Mt. Michelson quadrangle; Fire Creek (float); 69 deg. 32' N.; 145 deg. 12' W. Collector: H. Tourtelot, 1968.
indeterminate pelecypod mold
68ATo16 Sandstone type 1 , Mt Michelson , Mt. Michelson quadrangle; Shublick Springs, lag gravel; 69 deg. 32' N., 146 deg. 11; W. Collector: H. Tourtelot. Collection consists of two kinds of sandstone blocks and one piece of dark gray limestone with a lithostrotionoid coral. The sandstones are undoubtedly from the Permian Sadlerochit Formation; the coral is from the Lisburne Group.
Taonurus sp. (worm feeding trails)
worm borings and burrows, indet.
Pterospirifer? sp.
Neospirifer sp.
Spiriferella? sp.
brachiopod fragments, indet.
gastropod mold, indet.
pelecypod mold, indet.
68ATo16 Sandstone type 2 (with iron oxide coatings) , Mt Michelson , Mt. Michelson quadrangle; Shublick Springs, lag gravel; 69 deg. 32' N., 146 deg. 11; W. Collector: H. Tourtelot. Collection consists of two kinds of sandstone blocks and one piece of dark gray limestone with a lithostrotionoid coral. The sandstones are undoubtedly from the Permian Sadlerochit Formation; the coral is from the Lisburne Group.
orthotetid brachiopod, indet.
productoid fragments, indet.
Pterospirifer sp.
Spiriferella? sp.
pelecypod molds and casts, indet.
68ATo16 Dark gray limestone , Mt Michelson , Mt. Michelson quadrangle; Shublick Springs, lag gravel; 69 deg. 32' N., 146 deg. 11; W. Collector: H. Tourtelot. Collection consists of two kinds of sandstone blocks and one piece of dark gray limestone with a lithostrotionoid coral. The sandstones are undoubtedly from the Permian Sadlerochit Formation; the coral is from the Lisburne Group.
phaceloid lithostrotionoid coral, undet.