The upright human (scientific name: Homo erectus) which means standing or upright from the Latin root ērigere), is the name of an extinct species of human that lived in the Pleistocene geological period. The oldest fossil example of this creature belongs to 1.9 million years ago and the most recent one belongs to 143 thousand years ago.
Scientists believe that the origin of upright humans was Africa, who then migrated to Asia and spread throughout Eurasia to Georgia, Armenia and Azerbaijan, India, Sri Lanka, China and Indonesia.
I tried to sculpt a simulated example of these historical ancestors so that we have a basic file for printing or making more complex and detailed forms and components. If you have any questions or need to change, contact me.