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
Masters of the Hemisphere and any number of other bands. In 2006 the Masters of the Hemisphere briefly reunited to play shows in Athens, Georgia; Lexington, Kentucky; and San Francisco. "Local Government", a song from "Protest a Dark Anniversary", was prominently heard in an environmental PSA that debuted on MTV on August 31, 2006. The Masters of the Hemisphere recorded a new album in 2010; released by Kindercore Records in 2011, the new album was entitled "Maybe These Are the Breaks". Masters of the Hemisphere Masters of the Hemisphere are an American indie pop group, founded by Bren Mead and Sean Rawls. The two