This burial is the part of huge Neolithic complex of more than 100 objects found during the summer 2020 in Zaporizhzhya region, Ukraine. 97 of them are skeletons lying in the shallow pit near one another. They have been discoveried and studied by the archaeological team of Zaporizhzhya National University. The complex is preliminary dated back tp 6 millenia BC.
Further researches is yet to come, though even now it is a unique amount of awesome data on the Neolithic of the Ukrainian Steppe. Hope the future results will be informative!