Sample Detail of
Sample: Sample No. 83ARj146 -- USGS No. Mesozoic loc. M7895
Locality: Field No. 83ARj146
Description: Mt. Katmai (C-1) 1:63,360 quadrangle. North of Hook Glacier. Township: 19S, Range: 30W; Section: 18; Center SW 1/4. Latitude: 58o 31.57' N Longitude: 154o 18.00' W. Elevation: 1,750 ft., 534 m. Stratigraphic unit: Naknek Formation, Indecision Creek Sandstone Member. Age: Late Kimmeridgian - Early Tithonian. Collector: J. R. Riehle, 1983. Field Identifier: 83ARj 146. (description from Elder & Miller, 1993, p. 45); Lat. 58° 31.57' N., Long. 154° 18.00' W. (description from Miller et al., 1995)
Location: Alaska Quadrangle: Mt Katmai C-1
Township&Range: T19S R30W Section: SW 1/4 sec. 18
Lat.: 58o31.57 ' Long.: 154o18.00 '
Reference
Title: Mesozoic macrofossil locality information for the Mount Katmai and part of the Afognak quadrangles, Alaska ,  1993
This report provides a complete listing of locality information for Mesozoic molluscan localities presented in Miller and others (1994), "Macrofossil locality map, checklists, and pre-Quaternary stratigraphic sections of the Mt. Katmai and portion of the Afognak and Naknek quadrangles, Alaska". These localities comprise the bulk of the macrofossil collections available for this area. Collections with poor locality information or that could not be found for verification of identifications are excluded. The localities are plotted on a 1:250,000 scale map of the area and are listed in sequence by the map numbers shown on Plate 1. See Table 1 for a listing of the age abbreviations used in the locality listing.

Reference Cited:
Miller, J.W., Elder, W.P., and Detterman, R.L., 1994, Macrofossil locality map, checklists, and pre-Quaternary stratigraphic sections of the Mount Katmai and parts of the Afognak and Naknek quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Investigation 2021-G.
Report by: William P. Elder , John W. Miller
Age: Kimmeridgian-Tithonian (late Kimmeridgian - early Tithonian)
Formation: Naknek Formation - Indecision Creek Sandstone Member (Indecision Creek Sandstone Member)
Comment:Map number 169.

NO FOSSILS LISTED.

Title: Mesozoic macrofossil locality map, checklists, and pre-Quaternary stratigraphic section of the Mt. Katmai and adjacent parts of the Afognak and Naknek quadrangles, Alaska Peninsula, Alaska ,  1995
Report by: John W. Miller , William P. Elder , Robert L. Detterman
Age: Kimmeridgian-Tithonian (late Kimmeridgian - early Tithonian)
Formation: Naknek Formation - Snug Harbor Siltstone Member (Snug Harbor Siltstone Member)
Comment:Shown as locality 169 on map (Sheet 1 of 3) [Note difference with formation assignment given in Elder & Miller, 1993] Locality 169: Locality of Jns? age plots in Jnn. See comment on map number 168 above. (from Table 2)
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Buchia mosquensis (von Buch)
2 Bivalves Oxytoma sp.
3 Bivalves Pleuromya sp.
4 Bivalves Pseudolimea sp.
5 Bivalves Venerid bivalve