Sample Detail of
Sample: Sample No. 58AWg 9
Locality: Field No. 58AWg 9
Description: 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.
Location: Alaska Quadrangle: Mt Hayes A-4
Lat.: 63o13.5 ' Long.: 145o33.9 '
Reference
Title: Report on Referred Fossils ,  1960 (08/01)
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.
Report by: Helen Duncan
Referred by: Clyde Wahrhaftig , David M. Hopkins
Age: Permian
Comment:Indications of fossils are preserved as molds in the shaly rock. Dutro examined the brachiopods and pelecypods and supplied tentative identifications. The impression of a gastropod fragment was examined by Yochelson. The pieces of rock submitted contain the following: [see fossil list below].

Basing an age determination on material of this sort is hazardous. One can be fairly sure that the assemblage is Paleozoic, and the general aspect of the faunal association is more suggestive of Permian rocks than of older strata as known in this part of Alaska.

Occurrence(s)
No. Group Name Qty Notes
1 Crinoids Crinoid stems and columnals
2 Bryozoans Fenestella, 3 ssp. indet.
3 Brachiopods Punctospirifer? sp. indet.
4 Brachiopods Anidanthus? sp. indet.
5 Bivalves Aviculopecten? sp. indet.
6 Bivalves Pectenoid pelecypod, genus undet.
7 Snails Gastopod, moderately high-spired form, genus indet.