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Pterichthys   Listen
noun
Pterichthys  n.  (Paleon.) A genus of Devonian fossil fishes with winglike appendages. The head and most of the body were covered with large bony plates. See Placodermi.






Collaborative International Dictionary of English 0.48








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"Pterichthys" Quotes from Famous Books



... doubt, where man preserves some abrupt change in structure. It amused me to see Sir R. Murchison quoted as a judge of affinities of animals, and it gave me a cold shudder to hear of any one speculating about a true crustacean giving birth to a true fish! (Parson's, loc. cit. page 5, speaking of Pterichthys and Cephalaspis, says:—"Now is it too much to infer from these facts that either of these animals, if a crustacean, was so nearly a fish that some of its ova may have become fish; or, if itself a fish, was so nearly a ...
— The Life and Letters of Charles Darwin, Volume II • Francis Darwin



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