Sample Detail of
Sample: Sample No. F-56 -- USGS No. Mesozoic loc. 19989
Locality: Field No. F-56
Description: [Shown as locality 52 on Pl. 3 of Detterman and Hartsock, 1966][Entry card in USGS Mesozoic Fossil Locality register (Washington, D.C.) provides following description: "Jurassic - Tuxedni, Gaikima (note by R.B. Blodgett: should be Gaikema) sandstone mbr. Orig. no. F-56. SW Alaska, Cook Inlet Region, Iniskin Peninsula. Southwest side of Tonnie Creek about 700 feet upstream from the trail crossing at the mouth of the canyon and 1.47 miles S 61o E from Tonnie Peak. 80 feet above the base of the Gaikima. Firmly consolidated sandstone 25 ft. below a 2 1/2 ft. thick boulder conglomerate bed. Collected by Wedow and Kellum, Sept. 24, 1944."]
Location: Alaska Quadrangle: Iliamna D-1
Reference
Title: Geology of the Iniskin-Tuxedni Region, Alaska ,  1966
Report by: Robert L. Detterman , John K. Hartsock
Age: Bajocian
Formation: Gaikema Sandstone
Comment:Geographic location: Tonnie Creek-Fitz Creek area
Map reference (pl. 3): 52
Stratigraphic position below top of formation (ft): 120
all above data from Table 5, p. 28
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Inoceramus sp.
2 Ammonoids Stephanoceras sp.
3 Belemnites Belemnites