I dun know who came up with the name...and who came up with the idea of naming this species..and why they name it by that..
Does... Homo erectus sounds right to u guys? LOL...

okay... my mind is very dirty after all.. xD hahahaha..... maybe erectus came out coz they found out this species is the one that walk exactly upright for early hominins.. xD therefore they erect..? lolol...

Anthropology isn't so boring when they have names like that.. HAHAHAHA.....