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Taxonomy / Teleostomi / Osteichthyes / Lamprey / Chordate / Chondrichthyes / Batoidea / Agnatha / Craniata / Zoology / Fish / Ichthyology


Pennsylvania Fish are just as different from one another as we are different from other mammals. There are three different types, or classes, of fish. Cartilaginous fish (Chondrichthyes) have skeletons of cartilage and i
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Document Date: 2007-06-12 14:35:02


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