anallantoidea definition

  • noun-plural:
    • The division of Vertebrata where no allantois is created. It includes amphibians, fishes, and reduced forms.
    • The division of Vertebrata for which no allantois is created. It includes amphibians, fishes, and reduced forms.
  • others:
    • Those vertebrates which have no allantois; the Ichthyopsida, or amphibians and fishes: similar to Anamnionata, and opposed to Allantoidca.
    • Those vertebrates which have no allantois; the Ichthyopsida, or amphibians and fishes: synonymous with Anamnionata, and in opposition to Allantoidca.
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