Report on Referred Fossils |
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Stratigraphic range: |
Devonian(?) to Triassic |
Kinds of fossils: |
Marine invertebrates |
Quadrangle or area: |
Taylor Mountains, Lime Hills, McGrath, Medfra, Dillingham, Sleetmute |
Shipment No.: |
A-60-3 |
Referred by: |
Hoare, Joseph M.
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Report prepared by: |
Dutro, J. Thomas, Jr.
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Duncan, Helen
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Date: |
02/02/1962 |
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This report concerns 9 collections, comprising over 100 specimens, from Middle Paleozoic through Late Triassic age. The unusual Late Triassic assemblage (FET-1630) includes Spondylospira), corals, and a variety of molluscan genera. Similar associations are known from southeastern Alaska and the north shore of Iliamna Lake (see Martin, 1926, USGS Bull. 776, p. 59-60, 70-73). Three collections are probably of Permian age (FET-1680, FET-1680A and WCG-185) and another (FET-1684) may possibly be Permian, although Carboniferous cannot be ruled out. An Early Mississippian age is possible for FET-1676. The occurrence of Carboniferous, Permian, and Triassic fossils, in corkcs from the south end of the Alaska-Yukon geanticline (of Cady), indicates that equivalents to rocks of the Holitna group, are present in the Lime Hills region. Of the remaining three collections, only WCG-187 can be dated. It is probably Devonian.
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User Note module to be added |
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FET 1630
, Taylor Mts
, Taylor Mountains, 1:250,000 ed. of 1951. 60 deg. 54.5' N., 156 deg. 42.7' W.; Coords: (19.45, 16.2) [Note by R.B. Blodgett, collector is F.E. (Earl) Turner, Union Oil Company, 1959; [Lat. 60.9082, Long. 156.7113, limestone (description from Karl et al., 2011)]
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Spondylospira cf. S. lewesensis (Lees)
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terebratuloid brachiopod, indet.
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WCG 187
(6451-SD)
, Sleetmute
, Sleetmute, 1:250,000, ed. of 1950. 61 deg. 6.5' N., 156 deg. 48' W; Coords: (18.59, 2.17). [Note by R.B. Blodgett: collector is William Goth, Union Oil Company, 1959]
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dalmanitid trilobite pygidia, indet.
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FET-1676
, Lime Hills
, Lime Hills; 1:250,000, ed. of 1951. Lat. 61 deg. 28.5' N. Long. 155 deg. 33' W. Coords: (6.35, 8.35). [Note by R.B. Blodgett: collector is F.E. (Earl) Turner, Union Oil Company, 1959]
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bryozoan fragments, indet.
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productoid brachiopods, indet.
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FET-1680
, Mc Grath
, McGrath; 1:250,000, ed. of 1949. Lat. 62 deg. 05.2'N, Long. 155 deg. 12.5'W. Coords. (6.45, 1.6). [Note by R.B. Blodgett: collector is F.E. (Earl) Turner, Union Oil Company, 1959]
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echinoderm columnals, indet.
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fenestrate bryozoans, indet. (molds)
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acanthocladiidid bryozoans, indet. (molds)
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derbyioid brachiopod, indet.
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FET-1680A
, Mc Grath
, [Note by R.B. Blodgett: collector is F.E. (Earl) Turner, Union Oil Company, 1959; locality presumably same as FET-1680, i.e. no separate listing given on transmittal sheet of J. Hoare]
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fenestrate bryozoans, indet.
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massive bryozoans, indet.
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chonetid brachiopods, indet.
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productoid brachiopods, indet.
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spiriferoid brachiopods, indet.
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FET-1684
, Mc Grath
, McGrath; 1:250,000, ed. of 1949. Lat. 62 deg. 05.2'N, Long. 155 deg. 10.5'W. Coords: (6.85, 1.56). [Note by R.B. Blodgett: collector is F.E. (Earl) Turner, Union Oil Company, 1959]
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this single specimen is fragmentary but probably represents an echinoconchid brachiopod
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FET-1687
, Medfra
, Medfra; 1:250,000, ed. of 1950. Lat. 63 deg. 17'N., Long. 154 deg. 35'W. Coords: (11.16, 5.12). [Note by R.B. Blodgett: collector is F.E. (Earl) Turner, Union Oil Company, 1959]
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WCG-185
, Dillingham
, Dillingham; 1:250,000, ed. of 1951. Lat. 59 deg. 55.5'N., Long. 158 deg. 56'W. Coords: (0.54, 16.22). [Note by R.B. Blodgett: collector is William Goth, Union Oil Company, 1959]
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pelmatozoan debris, indet.
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bryozoan fragments, indet.
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bivalve fragments, indet.
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WCG-207
, Unknown
, No locality data provided. [Note by R.B. Blodgett: Collector is William C. Goth, Union Oil Company, 1959]
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Although nothing of a definite organic nature can be demonstrated, stromatoporoid-like or algal-like structures are present. Precise dating is not possible
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