Sample Detail of
Sample: Sample No. 48AI27 -- USGS No. Mesozoic loc. 21351
Locality: Field No. 48AI27
Description: [Shown as locality 309 on Pl. 3 of Detterman and Hartsock, 1966 - Note by R.B. Blodgett: digitization of this point gives approx. lat. 59o 49'56" N., 153o 00'37" W.][Entry in USGS Mesozoic Fossil Locality register (Washington, D.C.) provides following description: "Orig. no. 48AI27. Upper Jurassic - Naknek Fm. Geographical location same as no. 21292. South shore of Chinitna Bay, 5.0 miles N 71o E of dock at mouth of Fitz Creek. Arkosic sandstone in lower part of Naknek formation. July 1? & Aug. 10, 1948."]; R. W. Imlay, 1948. Eight km N. 71°E. of dock at mouth of Fitz Creek and slightly southeast of Mesozoic loc. 11002. Naknek Formation, unnamed lower sandstone member, 137 m above base. Early Oxfordian. (description from Imlay, 1981, USGS PP 1190, p. 25)
Location: Alaska Quadrangle: Iliamna D-1
Lat.: 59o49'56 " Long.: 153o00'37 "
Reference
Title: Geology of the Iniskin-Tuxedni Region, Alaska [last half of single issue publication] ,  1966
Report by: Robert L. Detterman , John K. Hartsock
Age: Late Jurassic
Formation: Naknek Formation - lower sandstone member (lower sandstone member)
Comment:Geographic location: Chinitna Bay area
Map reference (pl. 3): 309
Stratigraphic position below top of formation (ft): 450
all above data from Table 12, p. 51
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Oxytoma sp.
2 Bivalves Pleuromya sp.
3 Bivalves Astarte sp.
4 Bivalves Isognomon sp.
5 Ammonoids Phylloceras sp.
6 Ammonoids Cardioceras distans (Whitfield)
7 Ammonoids Cardioceras (Scoticardioceras) alaskense Reeside
8 Ammonoids Cardioceras (Scoticardioceras) sp.

Title: Late Jurassic Ammonites from Alaska ,  1981
Report by: Ralph W. Imlay
Age: Oxfordian (early Oxfordian)
Formation: Naknek Formation (unnamed lower sandstone member of Naknek Formation)
Comment:Shown as loc. 8 on Fig. 1; also shown on Figure 6 and Tables 2 and 5
Occurrence(s)
No. Group Name Qty Notes
1 Ammonoids Cardioceras (Cardioceras) distans (Whitfield) specimen from this locality illustrated on Pl. 8, figs. 5-7
2 Ammonoids Cardioceras (Cardioceras) cf. C. (C.) lilloetense Reeside 7 specimens from this locality illustrated on Pl. 9, figs. 7-8, 9-10, 11-12, 13-14, 15-16, 17-19, and 21)
3 Ammonoids Cardioceras (Scarburgiceras) martini Reeside
4 Ammonoids Cardioceras (Scoticardioceras) alaskense Reeside specimen from this locality illustrated on Pl. 11, figs. 1-2
5 Ammonoids Cardioceras (Scoticardioceras) cf. C. (S.) stella Arkell specimen from this locality illustrated on Pl. 11, figs. 7, 10