Here's an interesting late Second Age document that I find deep in the Library of Nochet. Although it was written in Theyalan, I suspect it is of Jrusteli origin, given its materialist nature.
THE AGES OF THE WORLD
1. All was Darkness and Water. Then came Earth and Aether.
2. Earth formed a perfect lozenge floated atop the water, rooted or pillared to the ancient base of Darkness. At first there were only gods, but later came life - algae, prokaryotes, arthropods, and fish.
3. Earth became irregular as it grew faster in some areas than in others. Flamal was born and plants grew atop the earth, followed by arthropods, and then by the first amphibians.
4. The Spike grew in the center and the first River flows uphill onto land. General mixing on surface world of elements. Other mountains are grown or made at this period. Reptiles rule the land, and True Dragons nest. Grandfather Mortal created.
5. Intense light begins above the Spike and grows in brightness. The first birds appear.
6. Sky encircles all the earth. Yelm rules the north, Lodril the south. Flowering plants appear, and insects flourish. Giant reptiles dominant.
7. Ratites and other great birds proliferate. Growing conflict among gods. Age ends with Yelm slain by Orlanth.
8. Storm gods dominate. Seas drop, many clouds, and more rivers. Mammals become dominant land animal. Conifers proliferate. First trolls appear on surface.
9. A predatory age. Valind conquers much of the world. Daga, Mallia, and Ragnaglar are big leaders. Trolls are very powerful. Brithos persists.
10. First Chaos gods appear. Age ends with the destruction of the Spike and departure of the Lightbringers.
11. Age of Chaos. Mortal revival and resurgence. Increased victories against Chaos, including I Fought, We Won.
12. Age of Time. The Dawn. History begins.