Reference
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Title: |
Report on Referred Fossils
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1967
(12/05)
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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
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Referred by: |
Robert L. Detterman
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| Age: | Kimmeridgian-Portlandian (middle Kimmeridgian - early Portlandian) |
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Rock Type: | Primary: Clastics |
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