American Heritage Dictionary
Century Dictionary
GNU Webster's 1913
(2)
WordNet
(1)
Elsewhere on the web
Pilton: Upper devonian.— The Evolution of Man — Volume 2
Ilfracombe: Middle devonian.— The Evolution of Man — Volume 2
Linton: Lower devonian.— The Evolution of Man — Volume 2
"This fish belongs to an extinct family, of which only fossil traces are found in the devonian formations."— A Journey to the Interior of the Earth
The old silurian or devonian transition schists, the belemnitic limestone of Tarantaise, and the dull gray calcareous— COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1

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