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Webster 1913 Edition

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Noun.

pl.

[NL., from Gr. [GREEK] marine ([GREEK] in + [GREEK] the sea) + [GREEK] a lizard.]

(Paleon.)

An extinct group of marine reptiles, embracing both the Ichthyosauria and the Plesiosauria, now regarded as distinct orders.

Enaliosauria

(obsolete) A taxonomic group within the class Reptilia – the ichthyosaurs and plesiosaurs (extinct).