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出典:Wikipedia
出典:『Wikipedia』 (2010/01/10 07:52 UTC 版)
Coccoderma is a genus of prehistoric coelacanth lobe-finned fish which lived during the Jurassic period. Fossils have been found in USA. It was small in size, about 27,5 cm. They had very long and sharp teeth that did not regrow unlike today's present sharks.
Coccoderma