of
Sample: Sample No. 69ABg131F -- USGS No. USGS Mesozoic loc. M5909
Locality: Field No. 69ABg131F
Description: Virtually identical to 69ABg130F. Occurrence is 200 feet southeast of 130F.
Location: Alaska Quadrangle: Ketchikan A-6
Lat.: 55o12.3 ' Long.: 131o43.4 '
Reference
Title: Report on Referred Fossils ,  1969 (11/17)
This report concerns the shelly faunas collected by Berg and Jones in 1969 and by Berg in 1968 from Bostwick Inlet, Gravina Island.
Report by: Norman J. Silberling
Referred by: Henry C. Berg
Age: Norian (late Norian)
Formation:Chapin Peak Formation (Revised; Robert B. Blodgett, 02/09/2008 )
Comment:These collections, which I presume are from a fairly retricted stratigraphic thickness, each contain at least one faunal element diagnostic of the upper Norian. They relate most closely to faunas known from Tyaughton Creek in western British Columbia, from Vancouver Island, and from the Gabbs Formation in western Nevada. Some of the species represented, such as the species of Cycloceltites, suggest a latest late Norian age, not Rhaetian but younger than faunas typical of the Suessi Zone and the commonly occurring kinds of Monotis such as M. subcircularis.
Occurrence(s)
No. Group Name Qty Notes
1 Ammonoids Cycloceltites cf. C. arduini (Mojsisovics)
2 Bivalves Cassianella sp.
3 Bivalves Plicatula cf. P. perimbricata Gabb
4 Bivalves Pinna sp.
5 Bivalves Gervilleia sp.
6 Bivalves Goniomya? sp.
7 Bivalves undet. nuculid, pectenacid, and other pelecypods