Sample Detail of
Sample: Sample No. 78ANS163A
Locality: Field No. 78ANS163A
Description: From 20 km 278o from Survey Pass, [Survey Pass] D4, elev. 5100 ft., T. 29 N., R. 19 E. (lat. 67o 53 min. 30 sec., long. 154o 33 min. 30 sec.) (description from Harris E&R report of 2/2/79)
Location: Alaska Quadrangle: Survey Pass D-4
Township&Range: T29N R19E
Lat.: 67o53'30 " Long.: 154o33'30 "
Reference
Title: Report on Referred Fossils ,  1979 (02/01)
Report by: Ellis L. Yochelson
Referred by: Steven W. Nelson
Age: Cambrian D-Early Triassic (Late Cambrian - Early Triassic)
Comment:I have frequently advocated the point that one cannot be totally certain in distinguishing some microscopic worm tubes from mollusk shells. Having said that, I believe that this is the phosphatized steinkern of a bellerophontiform gastropod. Its maximum age range would be Late Cambrian through Early Triassic. My best guess is post-Ordovician Paleozoic through early Triassic.
Occurrence(s)
No. Group Name Qty Notes
1 Snails bellerophontiform gastropod

Title: Report on Referred Fossils ,  1979 (02/02)
More samples ad infinitum! but we are almost through.
Report by: Anita G. Harris
Referred by: Steven W. Nelson
Age: No Data
Comment:2.1 kg of rock was processed for conodonts (1.4 kg of material remained undissolved after acid treatment):

NO CONODONTS WERE RECOVERED--one phosphatized gastropod was recovered. This was given to Ellis Yochelson for determination.

Occurrence(s)
No. Group Name Qty Notes
1 Snails one phosphatized gastropod steinkern given to Ellis Yochelson for determination