chordate : Definition, Usages, News and More

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chordate


  • n  any animal of the phylum Chordata having a notochord or spinal column
  • a  of or relating to or characteristic of the Chordata

  • For example, the chordate phylum includes mammals, birds and fish.
  • Flatworms have four, arthropods like fruit flies have eight, and the primitive chordate Branchiostoma (formerly known as Amphioxus) has 10.
News & Articles

  • Methinks it is like a fox terrier [Pharyngula]
    I’ve had, off and on, a minor obsession with a particular number. That number is 210. Look for it in any review of evolutionary complexity; some number in the 200+ range will get trotted out as the estimated number of cell types in a chordate/vertebrate/mammal/human, and it will typically be touted as the peak number…
    Nov. 9, 2013 - ScienceBlogs

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