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THELODUS

THELODUS The mouth of this small thelodontid was on the underside of its flattened head, which suggests that it fed on the seabed. But it could obviously swim well also. The lower lobe of the tail was elongated, and fins were developed for stability - a dorsal and anal fin at the rear, and 2 pectoral flaps at the front. ©1988 Marshall Editions Limited .