Sample Detail of
Sample: Sample No. 55ACo64a -- USGS No. Mesozoic loc. 25987
Locality: Field No. 55ACo64a
Description: Not given in Imlay E&R of 11/28/55, however, transmittal sheet of Grantz (Oct. 28, 1955) states: "Anchorage (D-2) 61o 50'42" N, 147o 24'02" W. Lower third of lower shale and siltstone member of Matanuska formation." (coordinates of 11.44-6.57 penciled in)[Note by RBB: collector: W.H. Condon] [Jones, 1967, USGS Prof. Paper 547, p. 18 provides following description: H. Condon, 1955. Anchorage D-2 quad., Lat. 61o 50'42" N., long 147o 24'02" W. Unit C-1.]
Location: Alaska Quadrangle: Anchorage D-2
Lat.: 61o50'42 " Long.: 147o24'02 "
Reference
Title: Report on Referred Fossils ,  1955 (11/28)
Report by: Ralph W. Imlay
Referred by: Arthur Grantz
Age: Late Cretaceous
Formation: Matanuska Formation
Comment:The fossils from the Matanuska formation are mostly Inocerami belonging to species that have been recorded previously from many localities and with which you are familiar.

The fossils from the basal sandstone belong mostly to Inoceramus uwajimensis Yehara. ....

The common species from the lower third of the lower shale and siltstone member is, also, Inoceramus uwajimensis, but I. cf. I. iburiensis Nagao and Matsumoto occurs at three localities. The latter has been obtained previously in about the same stratigraphic position in the lower part of the Matanuska formation.

Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Inoceramus uwajimensis Yehara

Title: Cretaceous ammonites from the lower part of the Matanuska Formation, southern Alaska, with a stratigraphic summary by Arthur Grantz ,  1967
Report by: David L. Jones
Age: Turonian
Formation: Matanuska Formation
Comment:[Note by R.B. Blodgett: Location shown on Pl. 10, which indicates it is Turonian in age]
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Inoceramus cf. I. curvierii