Fueling taxonomic debates, Investigated prominent features, 71 fossil, Junction junction, Extant species, Terminal pleistocene, Marginal ridges connecting, Late pleistocene ),, Specimens within, Paleoproteomics enlighten, Pongo </, div >< p, Later specimens, Punung sample, Elongated tooth outline, 142 semilandmarks along, Geometric morphometrics, Fossil specimens, Various sites, Connecting ridges, Main dentine horns, Pongo pygmaeus </, Previous allocation, p </, Early late pleistocene, Tam hay marklot, Vietnam share, Late pleistocene, Proteomic results show, Weidenreichi </, Pygmaeus </, Placing five landmarks, 15 teeth, Lower molars, Two fossil specimens, Consistent allocation, Pongo abelii </, Conducted paleoproteomic analyses, Using high, Paleoproteomic analyses, Abelii </, Applying geometric morphometrics, Dentine horns, Fossil counterparts, Devosi </