[The Ancient Life History of the Earth by Henry Alleyne Nicholson]@TWC D-Link bookThe Ancient Life History of the Earth CHAPTER III 11/14
Devonian or Old Red Sandstone. 5.
Carboniferous. 6.
Permian \_ New Red Sandstone. 7.
Triassic / 8.
Jurassic or Oolitic. 9.
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