Excerpt from Geology and Mineral Resources of Kansas The aqueous rocks are otherwise called stratified because they' are found in strata or layers, lying one above another, the bottom ones being the Oldest. These are grouped together for convenience of nomenclature, and Dana gives the following as the principal divisions: Quaternary, or age Of man. Tertiary, or age of mammals. The age Of reptiles. Carboniferous age. Devonian, or age of fishes. Silurian, or age Of invertebrates. Another grouping, with regard to the fossil ...
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Excerpt from Geology and Mineral Resources of Kansas The aqueous rocks are otherwise called stratified because they' are found in strata or layers, lying one above another, the bottom ones being the Oldest. These are grouped together for convenience of nomenclature, and Dana gives the following as the principal divisions: Quaternary, or age Of man. Tertiary, or age of mammals. The age Of reptiles. Carboniferous age. Devonian, or age of fishes. Silurian, or age Of invertebrates. Another grouping, with regard to the fossil forms, as related to their modern or ancient appearance, is indicated by the terms. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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