Ostracoda is one of the most widespread and diverse groups of crustaceans since the Early Ordovician. The subclass Podocopa are the most abundant ostracods during the Palaeozoic. However, its origin, evolution, ontogeny and phylogeny are poorly understood due to the lack of soft-part and molecular evidence, especially for the order Platycopida.
Click here for original story, Study reveals mystery of Paleozoic ostracod evolution
Source: Phys.org