



Scientists first discovered fossils of Homo floresiensis — a species of extinct 1-meter-tall hominins nicknamed “hobbits” — in Liang Bua cave on the Indonesian island of Flores in 2004. Until now, H. floresiensis, thought to have lived between about 95,000 and 50,000 years ago based on recent evidence, was the only extinct hominin known to have lived on Flores, although artifacts discovered on the island dating to 800,000 to 1 million years ago pointed to earlier hominin habitation. Now, in two new studies published in Nature, researchers announce the discovery of hobbit-like hominin fossils found elsewhere on the island that are roughly 700,000 years old. The new remains, if confirmed, would extend the age range of the hobbit lineage, and may help researchers piece together why H. floresiensis became so small.
Scientists excavated the new fossils from a site 70 kilometers east of Liang Bua called Mata Menge, which is situated in a 400-square-kilometer “sedimentary depression containing … rock strata accumulated between 1.4 million years ago and 500,000 years ago,” said Adam Brumm — an archaeologist at Griffith University in Australia and lead author of one of the two new studies — during a press briefing on Tuesday.
The new fossils include an adult jaw fragment that is smaller than the smallest H. floresiensis jaw known to date, as well as six teeth, including two infant “milk” teeth, from at least three different individuals. The fossils’ morphologies are very similar to those of H. floresiensis, wrote the second study's co-lead author Yousuke Kaifu of the National Museum of Nature and Science in Japan in a letter sent to the press briefing. They indicate that there were “tiny, hobbit-like hominins as early as 700,000 years ago on Flores” that were likely “the direct ancestor[s] to Homo floresiensis.”