a) I have an occipital bun, make Mousterian tools, and bury my dead

a) I have an occipital bun, make Mousterian tools, and bury my dead. Who am I?  

b.) I am the hobbit known from the Indonesian cave of Liang Bua. I lived with pygmy elephants and giant rats.  Who am I?

c.) I appear in the fossil record 315 000 years ago, have a globular cranium, and a chin. Who am I? 

d.) I am known from South and East Africa from 2.4-1.4 Ma. Even though my brain isn't very large, I still made crude stone tools. Who am I?

e.) I am the first member of the genus Homo to disperse out of Africa at 1.8 Ma with my Acheulean hand axes. Who am I?