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ostracoderms's Usage Examples:

members of the group. The Ostracoderms are, indeed, known only by the hard armature of the skin, but this sometimes bears impressions of certain internal soft parts which have perished B From the Monogr.

The affinities of Palaeospondylus are doubtful, but it is probably related to the contemporaneous armoured Ostracoderms.

The life of the land waters was also noteworthy, especially for the great deployment of what may be called the crustacean-ostracodermo-vertebrate group. The crustacea were represented by eurypterids, the ostracoderms by numerous strange, vertebrate-like forms (Cephalaspis, Gyathaspis, Trematopsis, Bothriolepss, 'c.), and the vertebrates by a great variety of fishes, The land life of the period is represented more fully among the fossils than that of any preceding period.

Ostracoderms >>

ostracoderms's Meaning':

extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic