- A grand unit of the Vertebrata, such as the Amphibia and Fishes.
- certainly one of three primary teams or provinces of vertebrates in Huxley's category (one other two being Sauropsida and Mammalia), comprising the amphibians or batrachians plus the fish and fish-like vertebrates; the branchiate or anamniotic Vertebrata.
Sentence for "ichthyopsida"
- It now appears that they form…
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