Original: The robust australopithecines , members of the extinct hominin genus Paranthropus ( Greek para '' beside '' , Greek anthropos '' human '' ) , were bipedal hominids that probably descended from the gracile australopithecine hominids ( Australopithecus ) .
Simplified: Paranthropus is an extinct genus of robust australopithecines . They probably descended from the gracile australopithecine Australopithecus .