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Nectrideans were an order of extinct amphibians belonging to the group Lepospondyli. These creatures lived during the Pennsylvanian and Lower Permian periods. Nectrideans were characterized by their markedly aquatic forms, with weak or reduced limbs and elongated, eel-like bodies, or broad, flattened bodies similar to skates. They are often grouped with other extinct amphibian orders like Aistopoda and Microsauria within the superorder Lepospondyli.12

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