Some scientists believe these tools and pendants found in Denisova Cave were made by a now-extinct hominin.

>>Denisova Cave in the Altai mountains of Siberia was hot property back in the day — at least to ancient humans who called it home for more than 200,000 years.
This is according to researchers who dated artefacts, fossils and sediments dug from pits in the cave’s floor to piece together a record of habitation.
In a pair of papers in Nature today, they report that Denisovans — an extinct species of human whose genome was reported in 2011 — occupied the cave from around 287,000 to 50,000 years ago.
This overlapped with Neanderthals, who also resided there but for a shorter period: between around 193,000 and 91,000 years ago.<<
https://www.abc.net.au/news/science/2019-01-31/denisovans-neanderthals-siberian-cave-hominin-human-archaeology/10751116?