RE: The Homo lineage created the savanna, rather than the other way around
It´s derived from my observation from a few months ago that humans originate from Danakil, which in turn builds on Elaine Morgan´s ideas from the 90s, and there have been others who have put forth that idea as well. What I have done is to build a tectonic model for how Danakil became a sort of "Galapagos of Pliocene East Africa", as well as how the fossil record has been deposited continuously from the coast-line of Danakil as the block rotated in a counter-clockwise direction.
In other words, based on tetonics, it is certain that the Danakil block would have deposited coastal layers into the Sea of Afar, it is bound to have happened just based on erosion happening in the direction opposite of the rotation, and that then explains the thin layers of sand stone in for example Hadar, where the vertebrate fossils are found (including Lucy. )
That then, explains a lot of other things.
Hay really nice and I must do appreciate your work.