Cockroaches existed before separation of continents: Study
An international study has traced back the existence of cockroaches to 300 million years ago, predating the separation of Pangaea, one of the most recent supercontinents to have existed, into the existent continents. The research stated the last common ancestor of cockroaches existed around 235 million years ago, about 95 million years before the first known fossils of modern cockroaches.