Agnatha : General Characteristics and Classification
Agnatha: It is superclass of jawless fish that represent some of the earliest vertebrates. The term “Agnatha” comes from Greek, meaning “without jaws.” Agnatha, (Ancient Greek ‘without jaws’) is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species. Among recent animals, cyclostomes…
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