Reference Detail of

Report on Referred Fossils
Edit Reference Add/Edit Sample Sample List Show Map

Stratigraphic range: Devonian
Kinds of fossils: Brachiopods
Quadrangle or area: Talkeetna Quad., Alaska
Shipment No.: A-75-18
Referred by: Nelson, Steven W.
Report prepared by: Dutro, J. Thomas, Jr.
Date: 02/02/1976

This report covers six collections, 5 of which appear to be of Devonian age, and one which may be Mesozoic. The most significant of these is 75ANs 67 which has a large assemblage and is either late Early or early Middle Devonian. It is older than the "type" Yentna and about same age as last year's 74ARa 38B. Numbered collections are being retained.

User Note module to be added
75ANs71A , Talkeetna , Elev. 3000 ft. 8.5 miles N. 78 deg. E. from Mt. Dall; gray clastic limestone with crinoids and brachiopods; Paleozoic flysch unit. Collector: S. W. Nelson, 1975.
Echinoderm debris
Cyrtospirifer? sp.
Productella? sp.
Schizophoria? sp.
75ANs71C , Talkeetna , Same locality as above [75ANs71A], but at elev. of 2700 ft.; gray, buff-weathering slaty-shale with corals and brachiopods. Collector: S. W. Nelson, 1975.
Echinoderm debris
Chonetes sp.
Crurithyris sp.
Indeterminate pelecypod fragment
Indeterminate trilobite pygidium
75ANs71D , Talkeetna , Same locality as above [75ANs71A], but at elev. of 3250 ft.. Collector: S. W. Nelson, 1975.
Echinoderm debris
75AR79 (9633-SD) , Talkeetna , Evel. 4060 ft. 4 miles N. 70 deg. E. of Shellabarger Pass at snout of small glacier. Collector: S. W. Nelson, 1975.
Schizophoria sp.
Chonetes? sp.
Productella sp.
Tylothyris? sp.
75ANs82A , Talkeetna , Evel. 3300 ft. 6.5 miles S. 80 deg. E. of Shellabarger Pass; one foot thick ls. in black Chert. Collector: S. W. Nelson, 1975.
75AR67 (9589-SD) , Talkeetna , 7 miles S. 12 deg. E. of Shellabarger Pass; well-bedded limestone; beds about 6-12 inches thick; probably part of a large local landslide; position unknown. Collector: S. W. Nelson, 1975.
Gasterocoma bicaula Johnson & Lane
Dohmophyllum sp.
horn coral, indet.
Gypidula sp.
Havlicekia sp.
Nikiforovaena sp.
Carinatina? sp.
Atrypa spp.
Weberopeltis sp.
Dechenella? spp.