Tabon Man refers to remains discovered in the Tabon Caves in Lipuun Point in Quezon, Palawan in the Philippines. They were discovered by Robert B. Fox, an American anthropologist of the National Museum of the Philippines, on May 28, 1962. These remains, the fossilized fragments of a skull of a female and the jawbones of three individuals dating back to 16,500 years ago, were the earliest known human remains in the Philippines, until a metatarsal from the Callao Man discovered in 2007 was dated in 2010 by uranium-series dating as being 67,000 years old. However, some scientists think additional evidence is necessary to confirm those fossils as a new species, rather than a locally adapted population of other Homo populations, such as H. erectus or Denisovan. The Tabon fragments are named after the Tabon Caves, where they were found on the west coast of Palawan. The cave complex appears to have been a kind of Stone Age factory, with both finished stone flake tools and waste core flakes having been found at four separate levels in the main chamber. Charcoal left from three assemblages of cooking fires there has been Carbon-14-dated to roughly 7000, 20,000, and 22,000 BCE. The right mandible of a Homo sapiens, which dates to 29,000 BC, was discovered together with a skullcap. The Tabon skull cap is considered the earliest skull cap of modern humans found in the Philippines, and is thought to have belonged to a young female. The Tabon mandible is the earliest evidence of human remains showing archaic characteristics of the mandible and teeth. The Tabon tibia fragment, a bone from the lower leg, was found during the re-excavation of the Tabon Cave complex by the National Museum of the Philippines. The bone was sent to the National Museum of Natural History in France to be studied. An accelerated carbon dating technique revealed a dating of , making it the oldest human fossil recovered in the complex. The Tabon Cave complex is named after the "Tabon bird" (Tabon scrubfowl, Megapodius cumingii), which deposited thick hard layers of guano during periods when the cave was uninhabited, so that succeeding groups of tool-makers settled on a cement-like floor of bird dung. About half of the 3,000 recovered specimens examined were discarded cores of a material that had to have been transported from some distance. This indicates that the inhabitants were engaged in tool manufacture. The