Pleistocene fishes from Alameda County, California
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Abstract
Six types of freshwater fishes were recovered from an early Pleistocene (Irvingtonian) locality on the east side of San Francisco Bay, Alameda County, Calif. The fauna includes one centrarchid, one salmonid, three cyprinids, and one catostomid. The fauna indicates fluvial and slow-moving or lacustrine aquatic environments. One of the cyprinids and the catostomid are assigned to provisional genera because of the inadequate amount of material available for study and the obvious differences between these fossils and known fossil or recent fishes. They are new additions to the Pleistocene fish fauna of California. Paleogeographic distribution of some of these fishes indicates former fluvial or lacustrine connections between Utah, Idaho, Oregon, Washington, Nevada, and California. The Pliocene and Pleistocene fossil fish faunas indicate the widespread occurrence of genera now endemic to California. A similar picture is presented by the molluscan evidence.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Pleistocene fishes from Alameda County, California |
Series title | Journal of Research of the U.S. Geological Survey |
Volume | 5 |
Issue | 2 |
Year Published | 1977 |
Language | English |
Publisher | U. S. Geological Survey |
Description | 7 p. |
First page | 209 |
Last page | 215 |
Country | United States |
State | California |
County | Alameda County |
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