Sample Detail of
Sample: Sample No. 75ABe91 -- USGS No. 27430-PC
Locality: Field No. 75ABe91
Description: 2-ft. limestone bed directly beneath volcanic rocks. Collector: W.P. Brosge, 1975.
Location: Alaska Quadrangle: Arctic D-4
Township&Range: T8S R25E
Lat.: 68o46' " Long.: 146o11' "
Reference
Title: Report on Referred Fossils ,  1979 (03/02)
This report covers one collection from below the volcanic rocks south of Porcupine Lake. The fossil assemblage indicates that the rocks from which it came are early Late Permian, probably the same age as the Echooka Formation, basal Ikiakpauruk Member or uppermost Joe Creek Member. [This is the second of the two report by Dutro on the same shipment A-79-10 - NZ]
Report by: J. Thomas Dutro , Jr.
Referred by: H. N. Reiser
Age: Late Permian
Comment:The fossil assemblage indicates that the rocks from which it came are early Late Permian, probably the same age as the Echooka Formation, basal Ikiakpauruk Member or uppermost Joe Creek Member.
Occurrence(s)
No. Group Name Qty Notes
1 Echinoderms echinoderm debris, indet.
2 Rugose Corals horn corals, undet.
3 Bryozoans ramose and fenestrate bryozoans, undet.
4 Brachiopods Waagenoconcha? sp.
5 Brachiopods Liosotella? sp.
6 Brachiopods linoproductoid brachiopods, indet.
7 Brachiopods echinoconchid brachiopod, indet.
8 Brachiopods Spiriferella sp. (large)
9 Bivalves pectenoid pelecypod (large), indet.