Sample Detail of
Sample: Sample No. 65ATr107 -- USGS No. 15472-PC
Locality: Field No. 65ATr107
Description: Howard Pass quadrangle; lat. 68o 47' N., long 158o 56' W., sec. 1, T. 8 S., R. 30 W.; prominent hill in reduced surface between Sorepaw and Jubilee Creeks. Fossiliferous limestone boulder in granite boulder conglomerate of unknown pre-Fortress Mountain affinity. Collectors: Tailleur and Donnell, 1965. Age of limestone may be of significance to provenance of conglomerate.
Location: Alaska Quadrangle: Howard Pass D-5
Lat.: 68o47' " Long.: 158o56' "
Reference
Title: Report on Referred Fossils ,  1972 (06/22)
Report prepared by J.T. Dutro, Jr. (in consultation with R.C. Douglass).
Collection retained.
Report by: J. Thomas Dutro , Jr. , Raymond C. Douglass
Referred by: Irv L. Tailleur
Age: Permian
Comment:At your request, thin sections of sample 65ATr107 (USGS 15472-PC) have been made and both Ray Douglass and I have examined them for possible foraminifera. There appear to be none at all. The rock is composed of echinoderm and bryozoan debris with a few shell fragments that are sections of the Spiriferella that I listed in the original report.

I am sending two sections to you in case you want to have Gus or Bernard look at them to verify our observations.

The Permian age, based on macrofossils, is the best we can do with this collection.

Occurrence(s)
No. Group Name Qty Notes
1 Echinoderms echinoderm debris
2 Bryozoans bryozoan debris
3 Brachiopods a few shell fragments that are sections of the Spiriferella listed in original report

Title: Report on Referred Fossils ,  1968 (05/22)
Report by: J. Thomas Dutro , Jr.
Referred by: Irv L. Tailleur
Age: Late Permian
Comment:This collection is almost completely composed of disarticulated valves of Spiriferella cf. S. keilhavii (von Buch). In addition, there are a few indeterminate compositids in a matrix of echinodermal and bryozoan debris. The Spiriferellas are remarkable in that most of them represent a wide-hinged form, similar to one illustrated from the Permian of east Greenland by Dunbar (1955). The source of the boulder was most likely the Nuka Formation, or a near-correlative, of Late Permian age.
Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods disarticulated valves of Spiriferella cf. S. keilhavi (von Buch)
2 Brachiopods indeterminate compositids
3 Echinoderms echinodermal debris
4 Bryozoans bryozoan debris