If you want to get technical, and who doesn't, the fossil-bearing deposits are found in the Chuniespoort Group, of the Malmani Sub-group, of the Transvaal Supergroup of rocks, and were formed about 2.5 billion years ago.
Arali u tshi khou toda u dzhena kha zwa tekiniki, nahone ndi nnyi asa zwi funiho, zwithu zwine zwa vha uri ndi zwa kale zwi wanala kha tshigwada tsha Chuniespoort, tsha Malmani Sub-group, tshine tsha bva Transvaal Supergroup ya matombo, zwo sikiwa lwa minwaha ya 2.5 billion yo fhelaho.