Sample Detail of
Sample: Sample No. 60ARr766
Locality: Field No. 60ARr766
Description: Red-weathering limestone in black slate. (3.19 x 15.38 Table Mtn.)
Location: Alaska Quadrangle: Table Mtn D-1
Lat.: 68o52.5 ' Long.: 143o30' "
Reference
Title: Report on Referred Fossils ,  1972 (03/23)
Report by: J. Thomas Dutro , Jr.
Referred by: H. N. Reiser
Age: Permian
Comment:As per your phone call of 3/22/72, I have reexamined collection 60ARR766 from shipment A-60-27. The rock is a medium grey, coarsely bioclastic, ferruginous limestone that weathers to yellowish and brownish hues. In addition to the coarse echinoderm debris, there are few indeterminate fragments of ramose bryozoans and the following brachiopods: “Liosotella” sp., Rhynchopora sp., Spiriferella sp., and an indeterminate fragment of a phricodothyrid. As a result of our work on the post-Lisburne rocks in the past three years, I would now say that this is of Permian age, possibly Early Permian.
Occurrence(s)
No. Group Name Qty Notes
1 Echinoderms echinoderm debris
2 Bryozoans ramose bryozoans, indet.
3 Brachiopods "Liosotella" sp.
4 Brachiopods Rhynchopora sp.
5 Brachiopods Spiriferella sp.
6 Brachiopods phricodothyrid fragment, indet.

Title: Report on Referred Fossils ,  1962 (01/25)
(in consultation with H. M. Duncan) This report covers 13 collections. Ten, comprising more than 250 specimens, [are] from post-Devonian rocks of the southern Brooks Range. Three other collections are pre-Mississippian.

The single collection from the Siksikpuk formation contains the typical Early(?) Permian assemblage found at many localities in the lower part of the unit. The Straparollus is definitive, in this instance.

Four collections from the Lisburne group appear to represent the Wachsmuth limestone. Collection Rr754 is probably upper Wachsmuth while Rr611 and Be733 are most likely lower Wachsmuth. Nothing really definitive can be said about Rr659.

Three collections submitted as possible Mississippian are more likely of Devonian age. They are Rr660, Be722 and Be724. A supplemental report by W. A. Oliver will follow.

Four collections represent the Kayak shale. Of these, Rr613 and Rr611A contain typical assemblages of early Mississippian fossils found elsewhere in this formation in the central Brooks Range.

The final collection, Be682, contains a mixture of Kayak and Wachsmuth rock types as indicated in the transmittal forms.
Report by: J. Thomas Dutro , Jr.
Referred by: William P. Brosge
Age: Early Mississippian (Early Mississippian?)
Formation: Kayak Shale (Kayak Shale (?))
Comment:Questionably Early Mississippian.
Occurrence(s)
No. Group Name Qty Notes
1 Echinoderms echinoderm debris, indet.
2 Brachiopods spiriferoid brachiopod, indet.
3 Bivalves bivalve fragments, indet.