Placoderm

noun

Word Frequency: 0.0

Definitions

1.nounA member of an extinct class (Placodermi) of jawed fish with armored heads and thoraces; the group lived during the Silurian and Devonian periods.

2.adjectivePertaining to the class Placodermi.

Synonyms

placoidian ostracoderm platycephalid dinichthyid placoid scleroderm aplodactylid petalichthyid cladodont platyrhinid helicoplacoid pleuropholid

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