| 1. | Pelecypods of this age in Wisconsin were preserved in Door County.
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| 2. | During the early Mesozoic, Triassic pelecypods were common Washington inhabitants.
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| 3. | The most common Miocene aged fossils are gastropods and pelecypods.
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| 4. | To the north these sediments grade laterally into nearshore marine clays with fossil pelecypods.
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| 5. | These included pelecypods and tube-building worms.
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| 6. | Contemporary gastropods and pelecypods left behind abundant fossils in what is now the Mesabi Range.
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| 7. | During the Pennsylvanian life included blastoids, brachiopods, bryozoans, fusulinids, and pelecypods.
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| 8. | Paleocene life in Alabama included pelecypods.
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| 9. | The most common Cretaceous fossils in Texas are cephalopods, echinoids, gastropods, and pelecypods.
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| 10. | The only known Jurassic fossils of Texas come from the Malone Mountains which preserve ammonites, gastropods, and pelecypods.
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