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"Cephalochordata" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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A subphylum of chordates intermediate between the invertebrates and the true vertebrates. It includes the LANCELETS. Its members are characterized by a NOTOCHORD which extends into the adult stage head.

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This graph shows the total number of publications written about "Cephalochordata" by people in this website by year, and whether "Cephalochordata" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.