Definitions for placodermˈplæk əˌdɜrm
This page provides all possible meanings and translations of the word placoderm
Random House Webster's College Dictionary
any of various extinct jawed fishes of the class Placodermi, chiefly of the Devonian Period: many were armored in bony plates.
Origin of placoderm:
1855–60; < NL Placodermi name of the class, pl. of placodermus=placo- (< Gk; see placoid , -o -) +-dermus -derm
fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws
A member of an extinct group of fish with armored heads; the group lived during the Silurian and Devonian periods.
one of the Placodermi
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