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Dec 9, 2009

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Classification

Rays are classified in the phylum Chordata, subphylum Vertebrata, class Chondrichthyes, subclass Elasmobranchii, order Batoidea.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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Conrad Gesner (1516-1565). (The History of Mineral Collecting: 1530-1799) (The Mineralogical Record)

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