I believe the works of the late Clarence Larkin in his works dispensational truth and Rightly Dividing the word of truth prove beyond a doubt there was a Pre-Adamite earth.

Satan existed before Adam and Eve and he was a fallen light bearer before Adam and Eve.Jesus said He seen satan fall like lightning and this was before God was made flesh.The Ice Age was before the creation of Adam and Eve ect.

God bless.
Brother Miller.

Another worthy source:

http://www.kjvbible.org/lifeform.html