Plotopteridae they became extinct. That they became extinct at the same time as the giant penguins of the Southern Hemisphere, which also coincided with the radiation of the seals and dolphins, has led to speculation that the expansion of marine mammals was responsible for the extinction of the Plotopteridae, though this has not been formally tested. Plotopteridae Plotopteridae is the name of an extinct family of flightless seabirds from the order Suliformes. Related to the gannets and boobies, they exhibited remarkable convergent evolution with the penguins, particularly with the now extinct giant penguins. That they lived in the North Pacific, the
Southern Kangaroo Island Marine Park Southern Kangaroo Island Marine Park Southern Kangaroo Island Marine Park (formerly Southern Kangaroo Island Commonwealth Marine Reserve) is a marine protected area located south of South Australia in waters within the Australian Exclusive economic zone to the south of Kangaroo Island and ranging in depth from to . It was gazetted in November 2012. It was renamed on 11 October 2017. It is part of a group of Australian marine parks managed by the Department of the Environment and Energy known as the South-west Marine Park Network. It is bounded on its northern side by the Southern Kangaroo Island Marine