Sample Detail of
Sample: Sample No. 14827-7
Locality: Field No. 14827-7
Description: Yellowish-brown pebbly sandstone, overlies local unconformity; possibly Cretaceous(?); easternmost of two offshore islands at mouth of Douglas River; 2.5 miles N. 55o E. of mouth of river; Lat. 59o 05' N., long. 153o 42'15" W.
Location: Alaska Quadrangle: Iliamna A-1 & A2
Lat.: 59o05' " Long.: 153o42'15 "
Reference
Title: Report on Referred Fossils ,  1967 (12/05)
The fossils collected from near the mouth of Douglas River in the Kamishak Bay area are typical of the Naknek Formation and range in age from late Oxfordian to early Portlandian. The fossils of age significance include the pelecypods Buchia concentrica (Sowerby) of late Oxfordian to middle Kimmeridgian age (Imlay, 1955, Prof. Paper 274-D, p.83) and Buchia rugosa (Fischer) of middle Kimmeridgian to early Portlandian age (Imlay, 1955 Prof. Paper 274-D, p.74, 75), and the ammonite Perishinctes (Dichotomosphinctes) of Oxfordian to early Kimmeridgian age (Imlay, 1961, Prof. Paper 374-D, p. D-7). The species of Dichotomosphinctes present is the same as illustrated by Imlay (1961, Prof. Paper 374-D, pl. 4, fig. 6) from the Naknek Formation and likewise is associated with Buchia concentrica (Sowerby).
Report by: Ralph W. Imlay
Referred by: Robert L. Detterman
Age: Kimmeridgian-Portlandian (middle Kimmeridgian - early Portlandian)
Rock Type:Primary: Clastics
Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Buchia rugosa (Fischer)
2 Bivalves Meleagrinella sp.
3 Bivalves Tancredia sp.
4 Bivalves Grammatodon sp.
5 Bivalves Mytilus sp.