What is a grand division of the Vertebrata, including the Amphibia and Fishes called?
ichthyopsida — A grand division of the Vertebrata, including the Amphibia and Fishes. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17 · Modified: 2026-07-17