Sample Detail of
Sample: Sample No. 63AMk98 -- USGS No. USGS Mesozoic loc. M2197
Locality: Field No. 63AMk98
Description: C-5 quad. near Bonanza Peak
Location: Alaska Quadrangle: Mc Carthy C-5
Lat.: 61o32.0 ' Long.: 142o15'1.45 "
Reference
Title: Report on Referred Fossils ,  1964 (02/07)
Report by: Norman J. Silberling
Referred by: E. M. MacKevett , Jr.
Age: Late Triassic
Formation: Chitistone Limestone
Comment:None of the fossils in the collection provide a basis for detailed age assignment.
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Gryphaea? sp. The moderately large oyster-like pelecypods resembling Placunopsis probably lived in water on the order of tens of feet in depth, but they may, of course, have been redeposited into deeper water.