Category:en:Placoderms

English terms for types or instances of extinct armored fish of the class Placodermi from the Silurian and Devonian geologic periods.

NOTE: This is a set category. It should contain terms for placoderms, not merely terms related to placoderms. It may contain more general terms (e.g. types of placoderms) or more specific terms (e.g. names of specific placoderms), although there may be related categories specifically for these types of terms.