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Chordata, Nonvertebrate
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A portion of the animal phylum Chordata comprised of the subphyla Cephalochordata, UROCHORDATA, and HYPEROTRETI, but not including the Vertebrata (VERTEBRATES). It includes nonvertebrate animals having a NOTOCHORD during some developmental stage. |
Chordata, Nonvertebrate Categories.
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Hyperotreti - A group of invertebrate chordates (CHORDATA, NONVERTEBRATES) in the subphylum Craniota. They include the single order Myxiniformes, which comprise various HAGFISHES. |
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Urochordata - A subphylum of chordates intermediate between the invertebrates and the true vertebrates. It includes the Ascidians. |
Chordata, Nonvertebrate Definitions and Terms
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