selachian

NOUN
  1. any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates
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How To Use selachian In A Sentence

  • a spiny operculum, as in all but the selachian fishes, but with one of skin. The History of Animals
  • Those produced by the hypochordal lobe of the caudal fin of selachians and early bony fishes have been studied in detail.
  • Modern, skeleton-breaking predators, particularly teleosts, neoselachian sharks and rays, and decapod crustaceans, began to diversify in nearshore environments during the Jurassic Period.
  • Lack of neural spine is consistent with selachians (a group of vertebrates which includes sharks and rays).
  • Fish included many elasmobranchs as well as osteichthyes such as palaeoniscoids, dipnoi, selachians, and crossopterygians, together with the ancient acanthodians.
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