of
Sample: Sample No. 0004-EA-4 -- USGS No. Mesozoic loc. M6490
Locality: Field No. 0004-EA-4
Description: Afognak (C-6) 1:63,360 quadrangle. Sea cliff above storm-tide leval about 12 m above base of section. Township: 18S, Range: 28W; Section: 28; SW 1/4. Latitude: 58o 35.20' N Longitude: 153o 54.15' W. Stratigraphic unit: Naknek Formation, Snug Harbor Siltstone Member. Age: Late Kimmeridgian. Collector: Les Magoon, 1975. Field Identifier: 0004-EA-4. (description from Elder & Miller, 1993, p. 39); Lat. 58° 52.75' N., Long. 154° 3.40' W. (description from Miller et al., 1995)
Location: Alaska Quadrangle: Afognak C-6
Township&Range: T18S R28W Section: SW 1/4 Sec. 28
Lat.: 58o35.2 ' Long.: 153o54.15 '
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 (late Kimmeridgian)
Formation: Naknek Formation - Snug Harbor Siltstone Member (Snug Harbor Siltstone Member)
Comment:Map number 144.

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 (late Kimmeridgian)
Formation: Naknek Formation - Snug Harbor Siltstone Member (Snug Harbor Siltstone Member)
Comment:Shown as locality 144 on map (Sheet 1 of 3) Locality 144: Measured section of Jns on beach below area mapped as Qs. Outcrop area too small for map scale. (from Table 2)
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Buchia mosquensis (von Buch)
2 Bivalves Buchia rugosa (Fischer)
3 Ammonoids Ammonite indeterminate
4 Belemnites Belemnite indeterminate