Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Permian
Kinds of fossils: Foraminifera
Quadrangle or area: Mt. Hayes A-1
Shipment No.: A-72-10
Referred by: Dutro, J. Thomas, Jr. , Richter, Donald H.
Report prepared by: Douglass, Raymond C.
Date: 07/19/1972

Following is a report on fusulinid collections from the type area of the Mankomen Formation in the Eagle Creek Valley in the Mt. Hayes A-1 quad., Alaska. The report is based on sliced, etched, and coated material.

Referred by J.T. Dutro, Jr. (for D.H. Richter)

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72ARh76 (f24511) , Mt Hayes , Limestone lens in volcano-clastics that underlie the main limestone.
Fusulinella sp.
Bradyina sp.
Climacammina sp.
72ARh78 (f24512) , Mt Hayes , Sandstone with abundant crinoidal debris and calcareous cement. Below the main limestone.
rare remnants of fusulinids worn to grains in the sand
72ARh15a (f24513) , Mt Hayes , None given in E&R report
small Schwagerina
72ARh18 (f24514) , Mt Hayes , Lower part of Lower Limestone Member of Mankomen Fm. [assigned to the Lower Argillite Member of the Mankomen Fm. in Douglass E&R report of 1/4/73]
"Alaskanella" sp.
Schwagerina sp.
72ARh22 , Mt Hayes , Calcareous sandstone with some bryozoa and abundant crinoid columnals but no fusulinids recognized.
bryozoa
abundant crinoid columnals
72ARh23 (f24515) , Mt Hayes , Float sample of sandy limestone with corals, bryozoans and brachiopods in addition to common fusulinids representing "Alaskanella" sp. of Early Permian, Wolfcamp age.
corals
bryozoans
brachiopods
"Alaskanella" sp.
72ARh25 (f24516) , Mt Hayes , Sandy limestone with abundant specimens of "Alaskanella" sp. of Early Permian, Wolfcamp age. [assigned to the Lower Argillite Member of the Mankomen Fm. in Douglass E&R report of 1/4/73]
"Alaskanella" sp.
72ARh28 (f24517) , Mt Hayes , Silty limestone with some brachiopods, zones of abundant crinoid columnals, common bryozoa and scattered specimens of a small Schwagerina sp. of Early Permian, Wolfcamp age. [assigned to the Lower Argillite Member of the Mankomen Fm. in Douglass E&R report of 1/4/73]
brachiopods
zones of abundant crinoid columnals
bryozoa
scattered specimens of a small Schwagerina sp.
72ARh30 (f24518) , Mt Hayes , Sandy limestone near top of Lower Limestone Member of Mankomen Fm. [assigned to the Lower Argillite Member of the Mankomen Fm. in Douglass E&R report of 1/4/73]
form similar to Eoparafusulina yukonensis of Ross
72ARh57 (f24519) , Mt Hayes , Sandy bryozoan limestone with abundant crinoidal debris from the Upper Limestone Member of the Mankomen Fm.
bryozoa
abundant crinoidal debris
Pseudofusulinella sp.
two species of Schwagerina
72ARh59 (f24520) , Mt Hayes , Sandy bryozoan limestone with crinoid columnals and scattered fusulinids. Upper Limestone Member.
bryozoa
crinoid columnals
large Schwagerina sp.