Animals that possess, at some stage of development, a notochord, a dorsal nerve cord and pharyngeal slits; in vertebrates the notochord is replaced by a backbone. Chordata includes every fish, amphibian, reptile, bird and mammal, along with the less familiar sea squirts and lancelets that retain the phylum's ancestral body plan.
Facts
Disputed
Member Species/Taxa CountApproximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized. Taxonomic Rank Scientific Name Classification
Living or Extinct Connections
Child Taxon Of
Parent Taxon Of
Source Wikidata: Lancelet
Source Wikidata: Ascidiacea
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ10915, descriptionView the Source 2. Catalogue of Life
Wikidata: Chordata
Wikidata: Ascidiacea
Parent Taxon Of: Sea Squirt, Wikidata parent-taxon (P171) chainView the Source Wikidata: Lancelet
Parent Taxon Of: Lancelet, Wikidata parent-taxon (P171) chainView the Source Reader Challenges (0)
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