Sample Detail of
Sample: Sample No. 91Tr15C -- USGS No. DR 1595
Locality: Field No. 91Tr15C
Description: Howard Pass C-3. Lat. 68o 36.5' N., Long. 157o 34.75' W. Fine rubble of hematitic, red-weathering chert having a somewhat earthy texture and containing impressions of Monotis (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: Late Triassic (Late Triassic (probably Norian))
Formation: Imnaitchiak Chert
Comment:Age: Late Triassic (probably Norian)

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

No nassellarians found

REFERENCE
Blome, C.D., Reed, K.M., and Tailleur, I.L., 1988, Radiolarian biostratigraphy of the Otuk Formation in and near the National Petroleum Reserve in Alaska, in Gryc, G., ed., Geology and Exploration of the National Petroleum Reserve in Alaska, 1974-1982: U.S. Geological Survey Professional Paper 1399, p. 725-776.

Occurrence(s)
No. Group Name Qty Notes
1 Radiolarian Fragment of Livarella sp. radiolarians identified by C.D. Blome and K.M. Reed
2 Radiolarian ?Capnodoce sp.
3 Radiolarian Etched pieces contain many thin-rimmed Pseudoheliodiscus (cf. the form shown in plate 33.2 of Blome and others, 1988, and some that have broader rims)
4 Radiolarian Rare grooved spines (none including main part of test)
5 Radiolarian Three-spined forms uniformly lacking mesh details