Description
All skeletons were found buried inside a vertical fissure in the limestone rock, about 1 meter wide, which had been filled over millennia by residual red clay mixed with travertine, limestone fragments and bones. Suzuki's excavation was limited to the part of the fissure that was exposed on the quarry's face, 5 m high and 20 m above the present sea level, and extended about 6 m into the cliff behind.
The bones recovered from that fissure belonged to between 5 and 9 distinct individuals (two males and the rest females), mixed with over 200 fragments of deer and boar bones. The finds lay on a diagonal band extending down and forward by about 6 meters within the fissure. The lowest-placed skeleton (Minatogawa I, a male about 25 years old) was standing upside-down, but his bones were mostly in their anatomical positions. The other skeletons were found with their bones all mixed up and scattered over several meters. Skeleton IV, in particular, was found as two sets of bones separated by a couple of meters; his skull has a perforation that seems to have been caused by a sharp hard point, and his left and right arms seem to have been fractured the same way. Suzuki conjectures that the individuals were killed with spears or arrows by enemies who cannibalized their victims (breaking bones in the process) and then threw the remains into the fissure, which had been used as a trash dump (which explains the animal bones).
The individuals were rather short (about 1.55 m for the males, 1.40 m for the females) and their cranial capacity was close to the lower end of the range of the latter prehistoric Jōmon (10,000 to 2,000 years ago) and modern Japanese. The teeth were extremely worn out, suggesting an abrasive diet. In one of the mandibles, the two median incisors had been knocked out at the same time, well before death—a custom that is known to have been practiced by the Jomon people.
Geologists have estimated that the fissure was created by an uplifting that bent and fractured the limestone rock layers, more than 100,000 years ago. Charcoal fragments in the fissure have been carbon-14-dated to about 16,000 and 18,000 years ago.
Read more about this topic: Minatogawa Man
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