Taxa named by Frederick McCoy

Placoderms (from Ancient Greek πλάξ [plax, plakos] 'plate' and δέρμα [derma] 'skin') are vertebrate animals of the class Placodermi, an extinct group of prehistoric fish known from Paleozoic fossils during the Silurian and the Devonian periods. While their endoskeletons are mainly cartilaginous, their head and thorax were covered by articulated armoured plates (hence the name), and the rest of the body was scaled or naked depending on the species.

species of mammal

species of annelid

Gyroptychius is an extinct genus of tetrapodomorphs from the Devonian period.

Megascolides is a genus of earthworms in the family Megascolecidae.

species of mollusc