Final answer:
Stone tools used to butcher animals and break open bones for marrow have been found with Australopithecus garhi and Paranthropus robustus.
Step-by-step explanation:
The species that have been found with stone tools used to butcher animals and break open bones for marrow are:
Australopithecus garhi - Fossils of A. garhi were found with fossil bones of ruminants such as antelopes, which displayed cut marks made by the process of removing meat from bones with stone or metal tools.
Paranthropus robustus - A muscular hominid species that had large grinding teeth and a coarser and fibrous vegetarian diet. Stone tools and numerous animal bones with cut marks were found at the site of discovering P. robustus fossils.
Australopithecus anamensis - No specific information is available about stone tools or butchering in relation to A. anamensis.