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markable event; a point of time marked by an event of great subsequent influence; as, the epoch of the creation; the birth of Christ was the epoch which gave rise to the Christian era. In divers ages, . . . divers epochs of time were used. Usher. Great epochs and crises in the kingdom of God. Trench. The acquittal of t…

See Epoch. J. Adams.

Belonging to an epoch; of the nature of an epoch. "Epochal points." Shedd.

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.

An epoch at the close of the American lower Silurian system. The rocks are well developed near Cincinnati, Ohio. The group includes the Hudson River and Lorraine shales of New york.

The closing subdivision of the Hamilton period in the American Devonian system; -- so called because the formations of this period crop out in Genesee, New York.

A subdivision of the Niagara period in the American upper Silurian, characterized by the formations known as the Oneida conglomerate, and the Medina sandstone. See the Chart of Geology.

A native of Acadie. Acadian epoch (Geol.), an epoch at the beginning of the American paleozoic time, and including the oldest American rocks known to be fossiliferous. See Geology. -- Acadian owl (Zoöl.), a small North American owl (Nyctule Acadica); the saw-whet.

ffice, or dignity; as, the accession of the house of Stuart; -- applied especially to the epoch of a new dynasty.

Of or pertaining to the city of Antioch, in Syria. Antiochian epoch (Chron.), a method of computing time, from the proclamation of liberty granted to the city of Antioch, about the time of the battle of Pharsalia, B.C. 48.

, esp. prehistoric antiquities, such as the remains of buildings or monuments of an early epoch, inscriptions, implements, and other relics, written manuscripts, etc.

ted by the extremists in the French Revolution, which became a sign of patriotism at that epoch; hence, a revolutionist; a Red Republican.

ative bed. See Drift. Bowlder clay, the unstratified clay deposit of the Glacial or Drift epoch, often containing large numbers of bowlders. -- Bowlder wall, a wall constructed of large stones or bowlders.

Bearing producing, or containing calcite, or carbonate of lime. Calciferouse epoch (Geol.), and epoch in the American lower Silurian system, immediately succeeding the Cambrian period. The name alludes to the peculiar mixture of calcareous and siliceous characteristics in many of the beds. See the Diagram under Grology…

vision of the American Lower Silurian system embracing the calciferous, Quebec, and Chazy epochs. This period immediately follows the primordial or Cambrian period, and is by many geologists regarded as the beginning of the Silurian age, See the Diagram, under Geology.

The whole body of decorative sculpture of any kind or epoch, or in any material; as, the Italian carving of the 15th century.

eaweed, characteristic of the lower Devonian rocks; as, the cauda galli grit. Gauda galli epoch (Geol.), an epoch at the begining of the Devonian age in eastern America, so named from the characteristic gritty sandstone marked with impressions of cauda galli. See the Diagram under Geology.

, along which the rocks are well developed. It includes the Portage and Chemung groups or epochs. See the Diagram under Geology.

de to appear specially conspicuous, on being added together, express a particular date or epoch, as in the motto of a medal struck by Gustavus Adolphus in 1632: ChrIstVs DVX; ergo trIVMphVs. - the capitals of which give, when added as numerals, the sum 1632.

om Europe, and the spanworm (Eufitchia ribearia). The fruit worms are the larva of a fly (Epochra Canadensis), and a spanworm (Eupithecia). -- Flowering currant, Missouri currant, a species of Ribes (R. aureum), having showy yellow flowers.