File:FMIB 49919 Comparison of series of shells from Goat Island (left), Dumbarton (center), and Crockett (right), illustrating range of.jpeg
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| Author |
English: San Francisco Bay Marine Piling Committee |
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| Description |
English: Comparison of series of shells from Goat Island (left), Dumbarton (center), and Crockett (right), illustrating range of variation at each of these points
Differences in absolute size may be disregarded, as in this case no selection has been made for age
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| Date | 1923 | |||||||||||||||||||||||
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| Current location |
English: Freshwater and Marine Image Bank |
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| Source/Photographer |
English: San Francisco Bay Marine Piling Committee (1923) Report on the San Francisco Bay Marine Piling Survey, San Francisco, CA: San Francisco Bay Marine Piling Committee |
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| Permission (Reusing this file) |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 22:49, 17 September 2015 | | 657 × 1,455 (306 KB) | BMacZeroBot (talk | contribs) |
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