Sample Detail of
Sample: Sample No. 48AI65 -- USGS No. Mesozoic loc. 21270
Locality: Field No. 48AI65
Description: [Shown as locality 85 on Pl. 3 of Detterman and Hartsock, 1966 - Note by R.B. Blodgett: digitization of this point gives approx. lat. 60o 09'54" N., 152o 41'33" W.][Imlay, 1964, p. B23 provides following description: "R.W. Imlay and D.J. Miller, 1948. Tuxedni Bay area, 0.52 mile N. 87o W. of Fossil Point. Fitz Creek Siltstone. From silty sandstone 150 ft below top. Same as unit 19 of section by Stanton and Martin."]
Location: Alaska Quadrangle: Kenai A-8
Lat.: 69o09'54 " Long.: 152o41'33 "
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: Fossil Point
Map reference (pl. 3): 85
Stratigraphic position below top of formation (ft): 500
all above data from Table 6, p. 33
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Inoceramus sp.
2 Ammonoids Chondroceras defontii (McLearn)
3 Ammonoids Normannites (Itinsaites) crickmayi (McLearn)
4 Ammonoids Stemmatoceras tuxedniense Imlay
5 Ammonoids Teloceras itinsae (McLearn)
6 Ammonoids Zemistephanus richardsoni (Whiteaves)

Title: Middle Bajocian ammonites from the Cook Inlet region, Alaska ,  1964
ABSTRACT

Jurassic ammonites of middle Bajocian age occur in the Tuxedni Group along the northwest side of Cook Inlet and in the Tuxedni Formation in the eastern part of the Talkeetna Mountain, Alaska. Numerically the dominant families are the Otoitidae and Stephanoceratidae. The families Phylloceratidae, Sonninidae, Oppelidae, and Perisphinctidae together compose only about one-third of the total specimens.

The Tuxedni Group has not furnished any ammonite genera that characterize the European zone of Sonninia sowerbyi at the base of the middle Bajocian. It has, however, furnished ammonites that characterize the next higher zones of Otoites sauzei and Stephanoceras humphriesianum.

......
Report by: Ralph W. Imlay
Age: Bajocian (middle Bajocian)
Formation: Fitz Creek Siltstone
Comment:Shown as locality 22 in Figure 2.
Occurrence(s)
No. Group Name Qty Notes
1 Ammonoids Holcophylloceras costisparsum Imlay, n. sp.
2 Ammonoids Chondroceras defontii (McLearn) One specimen (plesiotype) from this locality illustrated in Pl. 12, figs. 12-14
3 Ammonoids Normannites (Itinsaites) crickmayi (McLearn) Three specimens (plesiotypes) from this locality illustrated in Pl. 14, figs. 3-8, 13
4 Ammonoids Stemmatoceras cf. S. palliseri (McLearn) One specimen from this locality illustrated in Pl. 20, figs. 5-6 and Pl. 21, figs. 2, 4
5 Ammonoids Teloceras itinsae McLearn Three specimens from this locality (plesiotypes) illustrated in Pl. 23, figs. 9-10 and Pl. 24, figs. 1-2
6 Ammonoids Zemistephanus richardsoni (Whiteaves) One specimen (plesiotype) from this locality illustrated in Pl. 25, fig. 6