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cartilaginous fish

A Dictionary of Earth Sciences | 1999 | | © A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

cartilaginous fish Fish in which the skeleton, including the skull and jaws, consists entirely of cartilage and never, even in the adult stage, comprises bony tissue. Sharks and rays (Chondrichthyes) have a cartilaginous skeleton, as have other lower vertebrates, e.g. the jawless lampreys and hagfish (Agnatha).

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AILSA ALLABY and MICHAEL ALLABY. "cartilaginous fish." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 12 Nov. 2009 <http://www.encyclopedia.com>.

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