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What is Protochordata?

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These are bilaterally symmetrical, triploblastic and have a coelom and are primitive chordates. Protochordates possess a notochord during their early stage of development. The notochord is a long rod-like support that runs all along the back of the animal separating the nervous tissue from the gut. These are marine animals. e.g. Balanoglossus, Herdmania and Amphioxus.

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