Climate of the Coal Period.
Mountain Limestone.
Marine Fauna of the Carboniferous Period.
Corals.
Bryozoa, Crinoidea.
Mollusca.
Great Number of fossil Fish.
Foraminifera.


CHAPTER XXV.

DEVONIAN OR OLD RED SANDSTONE GROUP.

Classification of the Old Red Sandstone in Scotland and in Devonshire.
Upper Old Red Sandstone in Scotland, with Fish and Plants.
Middle Old Red Sandstone.
Classification of the Ichthyolites of the Old Red, and their Relation to Living
Types.
Lower Old Red Sandstone, with Cephalaspis and Pterygotus.
Marine or Devonian Type of Old Red Sandstone.
Table of Devonian Series.
Upper Devonian Rocks and Fossils.
Middle.
Lower.
Eifel Limestone of Germany.
Devonian of Russia.
Devonian Strata of the United States and Canada.
Devonian Plants and Insects of Canada.