Trinil Man is a term that refers to a fossilized skull of early Homo erectus discovered in Trinil, Java, Indonesia. This term is used interchangeably with the terms 'Java Man' or 'Pithecanthropus Erectus'. Homo erectus is an extinct species of human that lived from approximately 2 million to 140,000 years ago. The Trinil Man is an important specimen in human evolution as it is one of the earliest known examples of this species. Some other synonyms for Trinil Man could be Primitive man, Early human ancestor, or Early hominid. These terms all describe the same specimen and represent an important link in the evolution of our species.