| 11. | It feeds mostly on cephalopods, crustaceans, and small fish.
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| 12. | It feeds mostly on cephalopods, crustaceans, and small fishes.
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| 13. | These cephalopods existed in the Jurassic period, during Toarcian stage.
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| 14. | Nautiloid cephalopods are represented by tightly coiled ammonoids are common.
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| 15. | As cephalopods, squid exhibit relatively high intelligence among invertebrates.
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| 16. | The study of cephalopods is a branch of malacology known as teuthology.
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| 17. | Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids.
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| 18. | This means that cephalopods do not have a blind spot.
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| 19. | Other marine life included cephalopods, gastropods, crinoids, and trilobites.
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| 20. | Gastropod fossils may sometimes be confused with ammonites or other shelled cephalopods.
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