Reference Detail of

Report on Referred Fossils
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Stratigraphic range: Silurian?
Kinds of fossils: Gastropods
Quadrangle or area: Craig D-6 quad., Alaska
Shipment No.: A-68-18
Referred by: Ovenshine, A. Thomas
Report prepared by: Yochelson, Ellis L.
Date: 12/16/1968

This report is based on gastropods in four collections. All are being retained and have been assigned numbers. Several earlier collections have been reexamined. None of the fossils submitted is inidicative of Silurian age, though this age is likely for two of the collections. There is a slight suggestion from several identifications of corals that the form called Ptychocaulus, a very high-spired gastropod with closely spaced angulated whorls, may be indicative of Silurian.

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67AOv1552 (8270-SD) , Craig , Northwest coast of Kosciusko Island south of Point Hardscrabble; 1.18 miles at 232 degrees from triangulation station Pole.
Bellerophontacean gastropod with wide umbilici
gastropod indet. suggestive of Tremanotus
low-spired globose gastropod indet.
low-spired globose gastropod indet.
high-spired gastropod indet. - rounded whorls
high-spired gastropod indet. - flattened base
67AWd702 (8278-SD) , Craig , Quarry along Cape Pole-Edna Bay road. 1.44 miles at 028 degrees from triangulation station Sand. Light gray limestone. Silurian?
indeterminate gastropod
67AOv1761 (8279-SD) , Craig , South shore of Kosciusko Island. 1.84 miles at 019 degrees from triangulation station Berry in Cosmos Pass.
Raphistomatid gastropod
Genus indet. - globose
High-spired gastropod cf. Coelocaulus?
Pycnomphalus? sp.
67AWd563 (8287-SD) , Craig , Around the inner light Cape Pole, western Kosciusko Island. 0.41 miles at 153 degrees from Little Pole outer light. Med. bedded limestone, Silurian?
High-spired gastropod indet.