Craniata

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Craniata (Vertebrata; vertebrates; phylum Chordata) The subphylum of animals that have a bony or cartilaginous skull and a dorsal vertebral column. It includes the fish, amphibians, reptiles, birds, and mammals, which appear successively in the fossil record, starting in the Ordovician. See also BONE; and CARTILAGE.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

Craniata

views updated May 21 2018

Craniata (kingdom Metazoa, phylum Chordata) The subphylum that comprises animals that have a bony or cartilaginous skull and a dorsal vertebral column. See also VERTEBRATA.

A Dictionary of Zoology MICHAEL ALLABY

Metazoa

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Metazoa See ANIMALIA.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

Metazoa

views updated May 18 2018

Metazoa See ANIMALIA.

A Dictionary of Zoology MICHAEL ALLABY

Craniata

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Craniata See Chordata.

A Dictionary of Biology

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Metazoa

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