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ostracoderm::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | agnathan, jawless fish, jawless vertebrate |
Examples of ostracoderm
ostracoderm
The ostracoderm armour consisted of 3-5 mm polygonal plates which shielded the head and gills, and then overlapped further down the body like scales.
From the en.wikipedia.org
After the appearance of jawed fish, most ostracoderm species underwent a decline, and the last ostracoderms became extinct at the end of the Devonian period.
From the en.wikipedia.org
