Sample Detail of
Sample: Sample No. F-66 -- USGS No. Mesozoic loc. 19999
Locality: Field No. F-66
Description: [Shown as locality 99 on Pl. 3 of Detterman and Hartsock, 1966][Entry in USGS Mesozoic Fossil Locality register (Washington, D.C.) provides following description: "F-66. Tuxedni, Fitz Creek siltstone. SW Alaska, Cook Inlet, Iniskin Peninsula. SW side of Tonnie Creek about 400 ft, downstream from the base of the massive sandstone which forms lower cascades in stream. The cascade is about 0.6 mile upstream from the trail crossing at the mouth of the canyon and 1.15 miles S 58 3/4o E Tonnie Peak. Strat. Pos. 100 ft. below the top of the Fitz Creek siltstone. Lithology sandy shales 1.5 ft. stratigraphically above nod. limestones. Coll. Wedow 44NB Kellum #3 P 4, Sept. 26, 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 (middle Bajocian)
Formation: Fitz Creek Siltstone
Comment:Geographic location: Tonnie Creek-Twist Creek area
Map reference (pl. 3): 99
Stratigraphic position below top of formation (ft): 800
all above data from Table 6, p. 32
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Inoceramus sp.