Sample Detail of
Sample: Sample No. 76ADt202B -- USGS No. USGS loc. 26800-PC
Locality: Field No. 76ADt202B
Description: From a black siliceous siltstone 50 ft. above base of measured section of the Sadlerochit Group (Echooka Fm.) on a ridge east of a tribuatry of Ivishak River.
Location: Alaska Quadrangle: Sagavanirktok A-2
Township&Range: T4S R18E Section: secs. 10, 11, and 12
Lat.: 69o06.6 ' Long.: 147o42.5 '
Reference
Title: Report on Referred Fossils ,  1976 (10/26)
Report by: J. Thomas Dutro , Jr.
Referred by: Robert L. Detterman
Age: Permian
Formation: Echooka Formation - Joe Creek Member (Joe Creek Member)
Comment:Collection consists of a coquina of medium-sized linoproductids, perhaps assignable to the L. simensis group. Also present are poorly preserved internal molds of Attenuatella? and Spiriferella? ... from the Joe Creek Member and probably represents Zone F of Bamber and Waterhouse (1971). .... Zone F is correlated with the upper Leonard and Road Canyon of West Texas. (Longitude generalized from locality data.-R.B. Blodgett)
Occurrence(s)
No. Group Name Qty Notes
1 Brachiopods linoproductids, perhaps assignable to the L. simensis group
2 Brachiopods Attenuatella? poorly preserved internal molds
3 Brachiopods Spiriferella? poorly preserved internal molds