Sample Detail of
Sample: Sample No. 91Tr15E -- USGS No. DR 1597
Locality: Field No. 91Tr15E
Description: Howard Pass C-3. Lat. 68o 36.5' N., Long. 157o 34.75' W. Earthy-textured chert associated with dark-gray-weathering, platy, tuffaceous(?) rock; slightly northwest of 91Tr15C and 15CX. (description from Dover et al., 2004, p. 56 (Table 2))
Location: Alaska Quadrangle: Howard Pass C-3
Lat.: 68o36.5 ' Long.: 157o34.75 '
Reference
Title: Geologic and fossil locality maps of the west-central part of the Howard Pass Quadangle and part of the adjacent Misheguk Mountains Quadrangle, western Brooks Range, Alaska ,  2004
Report by: Jim Dover , Irv L. Tailleur , Julie A. Dumoulin
Age: Triassic (Triassic (probably Ladinian))
Formation: Imnaitchiak Chert
Comment:Age: Triassic (probably Ladinian)

Shown as locality 34 on Sheet 2; map unit: JlPip

Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Emiluvia sp. radiolarians identified by C.D. Blome and K.M. Reed
2 Radiolarian Staurodoras sp.
3 Radiolarian Eptingium sp.
4 Radiolarian Stout twisted spines not attached to main part of test