What Is A Basal Anthropoid?

What Is A Basal Anthropoid? Basal anthropoids. Eocene primates that are possibly ancestral to anthropoids. Which two genera may be ancestral to today’s orangutans? The genus Sivapithecus is now acknowledged as being the direct ancestor of modern day orangutans (Fleagle, 1999), and scientists believe that this line, the lineage that descended to modern day orangutans,