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Fieldiana v.13:no.5 (1964)
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The Cyathaspididae. A family of Silurian and Devonian jawless vertebrates
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By: Denison, Robert H. (Robert Howland),
Type: Article
In: Fieldiana. Geology
Volume: 13
Issue: 5
Date: 1964-04-24
Page Range: 309--473
Publication info: [Chicago], Chicago Natural History Museum, 1945-