Definition of Opsida. Meaning of Opsida. Synonyms of Opsida
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Definition of Opsida
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Ichthyopsida Ichthyopsida Ich`thy*op"si*da, n. pl. [NL., fr. Gr. ?, ?, a
fish + ? appearance.] (Zo["o]l.)
A grand division of the Vertebrata, including the Amphibia
and Fishes.
Sauropsida Sauropsida Sau*rop"si*da, n. pl. [NL., fr. Gr. ? a lizard + ?
appearance.] (Zo["o]l.)
A comprehensive group of vertebrates, comprising the reptiles
and birds.