Dear Samran,

to which (pre-)historical period(s) and to which regions of the world specifically are you referring to in your question?

Best,

Julius

Hi dear Julius

Thank you for your answer,

For answering the questions of this study, I need a wide range of palaeolithic periods and all regions of humans migrated. I know it's hard to find such data but if know that there is a study that refers to it more generally (for example 3/5 of sites are rockshelters and 1/5 caves and 1/ open-air sites) please let me know about it.

Bests,

Samran

Hello Samran; You might try to contact Marc Meyer. He is on RG. He may have some of the data you are looking for. Best regards, Jim Des Lauriers

Hello dear professor Lauriers

Thank you for your valuable guidance, I will definitely ask.

sincerely yours;

Samran