Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Upper Triassic
Kinds of fossils: Ammonites
Quadrangle or area: Sitka (A-2)
Shipment No.: A-59-4M
Referred by: Lathram, E. H.
Report prepared by: Silberling, Norman J.
Date: 07/13/1959


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Brief statement of problem and remarks (from collector):
Determination of general age of the material will aid in solution of structural and stratigraphic problems encountered during field mapping currently under way in S. Admiralty Island. At this time, only brief, perhaps informal, period classification of collection is desired.
User Note module to be added
59ABg6 (Mesozoic loc. M530) , Sitka , Assigned USGS Loc. 530 in my report on shipment of A-59-4M dated 7/20/59. Sitka A-2 coordinates: 12.32, 8.53. (from Silberling E&R report of 7/21/59) [Silberling E&R report of 7/20/59 provides following description: Alaska, Admiralty Island. Near top of thin- to medium-bedded gray limestone that overlies thin-bedded fine-grained brownish gray crystalline limestone; total exposed thickness of limestone exceeds 200 feet. North shore of Herring Bay. Sitka A-2 quad; 12.32 in. perpendicular from west margin, perpendicular intersects west margin 8.53 in. up from SW corner. Coll.: H.C. Berg, 1959][Transmittal sheet of Lathram dated July 13, 1959, provides following description: Ammonites, cephalopods from near top of thin-to-medium-bedded gray ls. that overlies thin-bedded fine-grained brownish gray ls. Entire ls. unit not exposed but thickness exceeds 200 feet. Possibly Mesozoic-Triassic field stratigraphic assignment. Sitka A-2 coords: (12.32, 8.53)] [Transmittal sheet of Lathram dated 6/30/59 provides the following description: Ammonite and uncoiled cephalopod from near top of thin- to medium-bedded gray limestone that appears to underlie 59ABg5 and 5A. Entire limestone unit not exposed, but thickness exceeds 200 feet. Possibly Mesozoic/Triassic field stratigraphic assignment. Sitka A-2 coords: 12.32, 8.53]
Juvavites (Anatomites) cf. J. (A.) externiplicatus Mojsisovics
Discophyllites ebneri Mojsisovics
Arcestes sp. indet.
Thisbites? sp.
Atractites sp.
crinoid columnals