|
Reference
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| Title: |
The Nushagak District, Alaska
,
1938
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| Report by: |
J. B. Mertie
, Jr.
|
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| | Age: | Cretaceous |
| Formation: | Unnamed (Unnamed undifferentiated Cretaceous rocks) |
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| Comment: | p. 54
"The undiffentiated Cretaceous rocks, both in this district and elsewhere in southern Alaska, contain few traces of organic life, and in the Nushagak district invertebrates were found in the lower part of this series at only one locality. .... The genus Mytilus is a pelecypod that is known to range stratigraphically from the Triassic to the Recent, and in Alaska has been found in rocks of Upper Triassic, Upper Jurassic, and Upper Cretaceous age. The collection above recorded has therefore little value in determining the age of these rocks, but it indicates the marine character of the sedimentation and also shows that some organic life was present in the water from which these sediments were deposited.
The best evidence for the age of these rocks is found in the character of their component minerals." |
| Occurrence(s) |
| No. |
Group |
|
Name |
Qty |
Notes |
| 1 |
Bivalves |
|
Mytilus sp. |
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| Title: |
Report on Referred Fossils
,
1936
(02/17)
|
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Report on Mesozoic fossils collected by J.B. Mertie, Jr., in Tikchik Lakes district, southwestern Alaska, in 1935. [Note by R.B. Blodgett: found on p. 2752 of Alaskan Fossil Reports, v. 12 (1935-1947), kept in Tech. Data Archives office in Anchorage, Alaska] |
| Report by: |
John B. Reeside
, Jr.
|
| Referred by: |
J. B. Mertie
, Jr.
|
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| | Age: | No Data (Indeterminate) |
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| Comment: | Age indeterminate. |
| Occurrence(s) |
| No. |
Group |
|
Name |
Qty |
Notes |
| 1 |
Bivalves |
|
Mytilus sp. |
|
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