What is Phylum Chordata?

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Four basic features are found in these animals - Notochord, dorsal hollow nerve cord, paired pharyngeal slits, and a post-anal tail.

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They show bilateral symmetry, triploblastic, coelom, and organ system level organization.

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In these, the tail is found after the anus.

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– Closed circulation is found in them.

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Classification of Phylum Chordata -

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The phylum Chordata is divided into three subphyla.

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1. Urochordata 2. Cephalochordata 3. Vertebrata

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Urochordata and Cephalochordata These are the oldest chordates hence they are called Protochodata,...

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