of
Sample: Sample No. 48AI23 -- USGS No. Mesozoic loc. 21347
Locality: Field No. 48AI23
Description: [Shown as locality 288 on Pl. 3 of Detterman and Hartsock, 1966 - Note by R.B. Blodgett: digitization of this point gives approx. lat. 59o 50'04" N., 153o 01'12" W.][Entry in USGS Mesozoic Fossil Locality register (Washington, D.C.) provides following description: "Orig. no. 48AI23. Upper Jurassic - Chinitna Fm. Same geographical location as no. 21292. Talus at base of cliff on south shore of Chinitna Bay, 4.73 miles N 68o E of dock at mouth of Fitz Creek. Gray siltstone, probably from the Chinitna Formation. July 13, 1948."]; [R. W. Imlay and D. J. Miller, 1948. Iniskin Peninsula, talus at base of cliff on south shore of Chinitna Bay, 4.73 miles N. 68° E. of dock at mouth of Fitz Creek, probably derived from same beds in same cliff as lot 21346, Chinitna formation, upper third. (description from Imlay, 1953, p. 66)
Location: Alaska Quadrangle: Iliamna D-1
Lat.: 59o50'04 " Long.: 153o01'12 "
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: Callovian
Formation: Chinitna Formation - Paveloff Siltstone Member (Paveloff Siltstone Member)
Comment:Geographic location: Chinitna Bay area
Map reference (pl. 3): 288
Stratigraphic position below top of formation (ft): 400-450
all above data from Table 11, p. 48
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Grammatodon sp.
2 Bivalves Pteria sp.
3 Snails Gastropods (undet.)
4 Ammonoids Phylloceras bakeri Imlay
5 Ammonoids Phylloceras sp.
6 Ammonoids Cadoceras (Stenocadoceras) multicostatum Imlay

Title: Callovan (Jurassic) ammonites from the United States and Alaska. Part 2. Alaska Peninsula and Cook Inlet Regions. USGS Proferssional Paper 249-B ,  1953
Report by: Ralph W. Imlay
Age: Callovian
Formation: Chinitna Formation
Comment:Shown as locality 26 on Figure 6.
Occurrence(s)
No. Group Name Qty Notes
1 Ammonoids Phylloceras (Phylloceras) bakeri Imlay, n. sp.
2 Ammonoids Cadoceras (Stenocadoceras) multicostatum Imlay, n. sp.