Lexic.us

Definition of Devonian period

1. Noun. From 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites.

Lexicographical Neighbors of Devonian Period

Literary usage of Devonian period

Below you will find example usage of this term as found in modern and/or classical literature:

1. Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1906)
"THE Devonian period. FORMATIONS AND PHYSICAL HISTORY. ... Under either of these points of view, the sea again invaded the land early in the Devonian period, ..."

2. Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1905)
"THE Devonian period. FORMATIONS AND PHYSICAL HISTORY. ... Under either of these points of view, the sea again invaded the land early in the Devonian period, ..."

3. A College Text-book of Geology by Thomas Chrowder Chamberlin, Rollin D. Salisbury (1909)
"CHAPTER XIX THE Devonian period FORMATIONS AND PHYSICAL HISTORY Early in the Devonian period, the sea covered the present area of land to some such extent ..."

4. An Introduction to Geology by William Berryman Scott (1907)
"CHAPTER XXIX THE Devonian period DEVONIAN SYSTEM RHINE-BELGIUM SECTION NEW YORK THE name Devonian, taken from the English county Devonshire, was proposed by ..."

5. The Journal of Science (1864)
"Principal Dawson has examined the Flora of the Devonian period, ... Some species which appear early in the Devonian period continue to its close without ..."

6. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1892)
"These families, except the last, abounded in the waters of the Devonian period, at the time when the ancestors of the ..."

7. An Introduction to Historical Geology: With Special Reference to North America by William John Miller (1916)
"... CHAPTER IX THE Devonian period ORIGIN OF NAME, SUBDIVISION.S, ETC. Ix 1839 Sedgwick and Murchison gave the name of Devonian to strata in the county of ..."

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