Rank the order of changes in human primates from the oldest to the most recent change,?

Question

...as they have been discovered in the fossil record.

Bipedal locomotion
Practice of burying their dead
Primitive tool making
Cave structures and carving sculptures
Opposable thumb

Answer 1

Logically I agree with the answer above. However, the first tools (stone tools) known are from the time of H. habilis, long after bipedal locomotion. I agree that there were probably primitive tools before then, they are just not known from the fossil (/archaeological)record. So I would say, based on the "fossil record":

-opposable thumb
-bipedal locomotion (Orrorin tugenensis)
-primitive tool making (Homo habilis)
-burying dead (Neanderthals)
-cave structures and carving sculptures (~40,000 years ago)

Answer 2

Here's my guess.

Opposable thumb -- even monkeys have this.
Primitive tool making -- chimps do this
Bipedal locomotion -- that's us!
Practice of burying their dead -- yup, there's evidence of this happening before the cultural revolution; Neanderthals did this sometimes
Cave structures and carving sculptures -- making sculptures would date from the time of the cultural revolution about 50,000 years ago.

Answer 3

Are teenagers primates ?
They can't do their own homework.