Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Permian and Pennsylvanian(?)
Kinds of fossils: Brachiopods
Quadrangle or area: Mt. Hayes Quad., Alaska
Shipment No.: A-79-44
Referred by: Nokleberg, Warren J.
Report prepared by: Dutro, J. Thomas, Jr.
Date: 10/07/1980

This report covers 11 collections submitted from the Mt. Hayes quadrangle, Alaska Range. Most of the collections contain representative assemblages found in the Eagle Creek Formation of the Mount Hayes A-1 and A-2 quadrangles (see Richter and Dutro, 1975). The age of this formation is mostly Early Permian, although the highest beds may be as young as very early Late Permian.

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79ANk018A (27720-PC) , Mt Hayes , Fault lens of limestone with minor chert, and calcareous decite/andesite flows. Collector: W. J. Nokleberg, 1979.
echinoderm debris and columnals, indet.
Polypora (and other indet. fenestate bryozoans)
Arctitreta sp.
Terrakea? sp.
productoid fragments, indet.
Spiriferella sp.
Neospirifer? sp.
79ANk093A (27721-PC) , Mt Hayes , Well-bedded limestone and argillite along western slope of creek bed. Collector: W. J. Nokleberg, 1979.
echinoderm debris, indet.
bryozoans, undet. (ramose and fenestrate forms)
Anidanthus sp.
Anemonaria sp.
Neospirifer sp.
Septospirifer? sp.
Spiriferella sp.
punctate spiriferid, indet.
Rhynchopora sp.
pectenoid pelecypods, indet.
79ACh021 , Mt Hayes , recrystallized fossiliferous limestone with pods of chert. Collector: ?, 1979
echinoderm debris
brachiopod fragments
79ACh062 , Mt Hayes , Calcareous agglomerate. Collector: ?, 1979
echinoderm debris
bryozoan debris
shelly debris
79AHz066A , Mt Hayes , Fossiliferous limestone [and] andesite. Collector: ?, 1979
fenestrate bryozoan
horn coral
echinoderm debris
Reticulatia sp.
79AHz072G , Mt Hayes , Thick (80 ft.) limestone unit in the type area of the Lower Slana Spur Fm.; sample locality in creek bed. Collector: ?, 1979
large indet. productoid
echinoderm debris
79AIL073D , Mt Hayes , Recrystallized limestone very near skarn with well-developed hematite bands. Collector: ?, 1979.
echinoderm debris
79ARM027A (27723-PC) , Mt Hayes , calcareous, tuffaceous valcaniclastic rock, fossiliferous. Collector: ?, 1979.
Neospirifer sp.
echinoderm debris
79AZn015A (27724-PC) , Mt Hayes , Massive, fossiliferous limestone outcrop on ridge top with volcanic breccia/porphyry unit.
echinoderm debris, indet.
Polypora sp. (and other fenestrate bryozoans, indet.)
ramose bryozoans, indet. (probabaly stenoporoids)
Waagenoconcha sp.
Neospirifer sp.
pectenoid pelecypod fragment, indet.