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Gorgonichthys clarki is an extinct arthrodire placoderm of the superfamily Dinichthyoidea. Fossils of G. clarki are found in the Upper Famennian Cleveland Shales of Late Devonian Ohio. G. clarki is estimated to have reached 6 meters in length. However it still may not have been as heavily built as its contemporary Dunkleosteus.
- ^ Carr, R. K.; Hlavin, W. J. (1995). "Dinichthyidae (Placodermi):A paleontological fiction?". Geobios 28: 85. doi:10.1016/S0016-6995(95)80092-1.
- ^ http://www.palaeos.org/Gorgonichthys