·- An epoch at the close of the Canadian period of the American Lower Silurian system;
— so named from a township in Clinton Co., New York. ·see the Diagram under Geology.
·noun The date at which a planet or comet has a longitude or position. II. Epoch ·noun A division o...
Webster's Dictionary of the English Language
The time to which certain given numbers or quantities apply. ...
The Sailor's Word-Book
·- An epoch at the close of the American lower Silurian system. The rocks are well developed near Ci...
·- The closing subdivision of the Hamilton period in the American Devonian system; — so called beca...
·- A subdivision of the Niagara period in the American upper Silurian, characterized by the formatio...