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Description: Cephalaspis is one of an extinct group of early diverging fish called ostracoderms that were partially armoured and lacked a hinged jaw. Jawless species like this were particularly common in the Silurian and Devonian periods.
Picture Stats: Views: 7910 Filesize: 33.36kB Height: 425 Width: 850 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=99 Keywords: Ancient jawless fish |