Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Probably Permian
Kinds of fossils: Corals, Bryozoa, Brachiopods, Pelecypods, Gastropods
Quadrangle or area: Mt. Hayes A-1, Central Alaskan Range
Shipment No.: A-60-10
Referred by: Wahrhaftig, Clyde , Hopkins, David M.
Report prepared by: Duncan, Helen
Date: 08/01/1960

In consultation with J. T. Dutro and Ellis Yochelson. This report is concerned with two lots of material collected from gravels tentatively correlated with the Nenana gravel and exposed in the ridge between McCallum Creek and Phelan Creek, just north of Isabella Pass. The fossil assemblages that occur in both lots suggest that the cobbles were derived from Permian strata.

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58AWg 16 , Mt Hayes , f 21728 = 58 AWg16. Pebble in bed of McCallum Creek near mouth, altitude 3,000'; 11.2" E, 15.6" N of SW edge of Mt. Hayes A-4. Pebble from the Isabella Pass Tertiary gravel collected by C. Wahrhaftig & H. Bender, 1958.
Cyathocarinia sp. undet.
Caninia cf. C. ovibos (Salter)
Goniocladid bryozoan fragments
Rhomboporella sp.
Pinnate bryozoan, genus indet.
58AWg 9 , Mt Hayes , Outcrop at altitude of 4,000 feet on south side of ridge between McCallum Creek and Phelan Creek; 13.7" E and 15.8" N of SW edge of Mt. Hayes A-4 quadrangle.
Crinoid stems and columnals
Fenestella, 3 ssp. indet.
Punctospirifer? sp. indet.
Anidanthus? sp. indet.
Aviculopecten? sp. indet.
Pectenoid pelecypod, genus undet.
Gastopod, moderately high-spired form, genus indet.