Enaliosauria

• (n. pl.) An extinct group of marine reptiles, embracing both the Ichthyosauria and the Plesiosauria, now regarded as distinct orders.
Found on http://thinkexist.com/dictionary/meaning/enaliosauria/

Enaliosauria

En·al`i·o·sau'ri·a noun plural [ New Latin , from Greek ... marine (... in + ... the sea) + ... a lizard.] (Paleon.) An extinct group of marine reptiles, embracing both the Ichthyosauria and the Plesiosauria, now regarded as distinct orders.
Found on http://www.encyclo.co.uk/webster/E/33
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