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.

The Student's Elements of Geology · 第 25 / 47 章