Houzé (1896) provided a description of the fossils from Trinil and suggested that if they represent the oldest humans then Pithecanthropus should be replaced with Homo javanensis primigenius. Houzé (1896) is the oldest use of the nomen primigenius in the species-group.
Campbell (1965) listed Homo javanensis primigenius as an objective junior synonym of Pithecanthropus erectus.
