Sample sentences for CARBONIFEROUS PERIOD

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Definition

a geologic period that stretched from roughly 360 million years ago to 300 million years ago; named after the extensive coal seams ('carbon') deposited at the time; giant ferns, first reptiles

They have the mystery of ferns that disappeared a million years ago into the coal of the carboniferous era.
John Steinbeck -- Travels with Charley

He jumped to the conclusion that this must be a forest of the Carboniferous Period.
Robert A. Heinlein -- Tunnel In the Sky
The scene seemed to belong to the ancient world of the carboniferous period, when the forms of plants were few, and of the fern kind; when there was neither bud nor blossom, nothing but a monotonous extent of leafage, amid which no bird sang.
Thomas Hardy -- The Return of the Native
More like ferns unscrolling — something old, carboniferous, but at the same time newborn, fragrant, verdant.
Margaret Atwood -- Oryx and Crake

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Carboniferous period