Simplify the following text for a Grade 14 native English-speaking person.
Original: Paranthropus is associated with stone tools both in southern and eastern Africa , although there is considerable debate whether they were made and utilized by these robust australopithecines or contemporaneous Homo .
Simplified: Paranthropus is associated with stone tools both in southern and eastern Africa , although there is considerable debate whether they were made and utilized by these robust australopithecines .