Podocopa

The Podocopa are a subclass of ostracods. This subclass can be differentiated from the other subclass (Myodocopa) by the morphology of the second antenna: the Podocopa have a relatively long endopod, whereas the Myodocopa have a relatively long exopod. The seventh limb of the Podocopa has a variety of forms or is absent, but is never an annulated worm-like limb (as seen in some Myodocopa). Within the Podocopa there are three orders: Platycopida, Podocopida and Palaeocopida.