Sample Detail of
Sample: Sample No. 48AI12 -- USGS No. Mesozoic loc. 21301
Locality: Field No. 48AI12
Description: [Shown as locality 24 on Pl. 3 of Detterman and Hartsock, 1966][Entry in USGS Mesozoic Fossil Locality register (Washington, D.C.) provides following description: "Orig. no. 48AI12. Middle Jurassic - Tuxedni Fm - Lowest member. Same geographic location as no. 21292, same stratigraphic horizon as 21292. Same measured section as no. 21294. Shell beds in dark green sandstone 725 to 745 ft. stratigraphically below the top of the member. 1.62 miles N. 54o W. of dock at mouth of Fitz Creek. July 10, 1948."]
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: Red Glacier Formation
Comment:Geographic location: South shore of Chinitna Bay
Map reference (pl. 3): 24
Stratigraphic position below top of formation (ft): 725
all above data from Table 4, p. 25
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Trigonia sp. fauna identified by R.W. Imlay