Carboniferous
[,kɑrbə'nɪfərəs]
Definition
(noun.) from 345 million to 280 million years ago.
(adj.) of or relating to the Carboniferous geologic era; 'carboniferous rock system' .
Checker: Roland--From WordNet
Definition
(a.) Producing or containing carbon or coal.
Typist: Preston
Examples
- Lyell and Dr. Dawson in the carboniferous strata of North America; but now land-shells have been found in the lias. Charles Darwin. On the Origin of Species by Means of Natural Selection.
- It is as interesting to the political student, therefore, as a carboniferous amphibian or an _arch?opteryx_ to the student of zoological development. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.
- The Carboniferous Rocks, the coal-measures, give us a vision of the first great expansion of life over the wet lowlands. H. G. Wells. The Outline of History_Being a Plain History of Life and Mankind.
- The great system of strata in which coal is chiefly found is known as the carboniferous. Various. The Wonder Book of Knowledge.
Checked by Dora