If an animal possesses a backbone but does not have a notochord, can it still be classified as a chordate?
http://en.wikipedia.org/wiki/Chordate Chordates are animals possessing a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail for at least some period of their life cycles. Taxonomically, the phylum includes the subphyla Vertebrata, including mammals, fish, amphibians, reptiles, birds; Tunicata, including salps and sea squirts; and Cephalochordata, comprising the lancelets. Members of the phylum Chordata are bilaterally symmetric, deuterostome coelomates, and the vertebrate Chordates display segmentation. So no.
So the spinal chord is the same thing as the notochord? SInce that is where all the nerves branch off?
I'm not sure but if it doesn't have a notochord it's not a chordate.
Oh ok! Thank you so much :)
No problem, anytime.
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