Sample Detail of
Sample: Sample No. 61ABa1561 -- USGS No. 21739-PC
Locality: Field No. 61ABa1561
Description: Black River A-3 quad., Lat. 66o 11.3' N., Long. 142o 11.3'W., coords. (8.7, 13.0). Unnamed shale and limestone sequence on northwest side of Grayling Fork of Black River.
Location: Alaska Quadrangle: Black River A-3
Lat.: 66o11.3 ' Long.: 142o11.3 '
Reference
Title: Report on Referred Fossils ,  1965 (12/09)
This report is based on gastropods in a dozen collections from northern Alaska. They have all been assigned permanent locality numbers (-PC).
Report by: Ellis L. Yochelson
Referred by: Earl E. Brabb
Age: Permian
Formation: Unnamed (Unnamed shale and limestone sequence)
Comment:This has previously been determined as Permian. It is not the characteristic S. (Euomphalus) alaskensis. The specimen is distorted.
Occurrence(s)
No. Group Name Qty Notes
1 Snails Straparollus (Euomphalus) sp.

Title: Report on Referred Fossils ,  1965 (09/30)
Twenty-five collections from nine localities all contain Permian brachiopods. The quality of preservation of the fossils in most of the collections is good, and the entire shipment will be kept in the Paleontology and Stratigraphy Branch's Permo-Carboniferous collections for further reference. The collections have been assigned numbers 21738-PC to 21760-PC (incl) and 21769-PC and 21770-PC. They are grouped by locality for purposes of discussion below.
Report by: Richard E. Grant
Referred by: Earl E. Brabb
Age: Permian (middle Permian)
Formation: Unnamed (Unnamed shale and limestone sequence)
Comment:Brachiopods are Megousia sp. and a terebratuloid.

Megousia occurs in the middle part of the Permian; in the Leonard and Word Formations of the Southwest, the Monos Formation of Sonora, the Brachiopod Chert of Spitzbergen.

[Note by Blodgett: Brabb's transmittal sheet gives the coords of (8.7, 12.9) for this locality]

Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods Megousia sp.
2 Brachiopods terebratuloid

Title: Report on Referred Fossils ,  1966 (03/25)
This report supplements that of R.E. Grant (9/30/65). Pelecypods are present in 11 collections from five localities. In general the quality of preservation is poor - almost all of them being incomplete external molds and casts.
Report by: John Pojeta
Referred by: Earl E. Brabb
Age: No Data
Formation: Unnamed (Unnamed shale and limestone sequence)
Comment:Small nuculoid pelecypod genus and species indeterminate
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves small nuculoid pelecypod genus and species indeterminate