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Reference
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| Title: |
Report on Referred Fossils
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1924
(01/10)
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Report On Alaska Fossils, Vol. 9, pp. 2130 - 2137. |
| Report by: |
J. H. Knowlton
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| Referred by: |
W. T. Foran
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| | Age: | Early Cretaceous (Lower Cretaceous) |
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| Comment: | This is by all odds the most puzzling lot in the whole collection. The Ginkgo, although large and well enough preserved, is of little value in fixing the age, as Ginkgo has come down to us from the Jurassic to the present with very little change. The fragment of a fern seems to be the same as a form from Cape Lisburne, but the well defined dicotyledons preclude absolutely a reference to the Jurassic. On the basis of present knowledge can hardly be older than the middle or upper part of the lower Cretaceous. |
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| Title: |
Report on Referred Fossils
,
1924
(02/09)
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Report on twenty collections (lot Nos. 7640-7654 and 7664-7668) of fossil plants from the Kukpowruk and the Utokok River, northern Alaska, collected by W. T. Foran for Sidney Paige in 1923.
A majority of these collections consist of a single piece of matrix each. Plant remains are included in most of them, but they are fragmentary and few are identifiable, even generically. Certain of the single specimens, however, if considered by themselves, would be regarded as almost certainly Jurassic; but at least one, and possibly two, of the collections undoubtedly represent Lower Cretaceous horizons. [The report covers the two Cretaceous collections. See Hnowlton's report for all 20 collections - NZ] |
| Report by: |
Arthur Hollick
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| Referred by: |
W. T. Foran
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| | Age: | Early Cretaceous (Lower Cretaceous) |
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| Comment: | This collection, in addition to more or less well defined specimens of a fern (Cladophlebis sp.) and gymnosperms (Ginkgo sp.), contains fragmentary remains of leaves of angiosperms. This precludes the possibility of Jurassic age for the rock in which they occur. The age is Lower Cretaceous and apparently about the equivalent of the Potomac group. |
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