FARLOVIAN STAGE

division of the Old Red Sandstone of the Devonian Period of western Europe (the Devonian Period began about 395,000,000 years ago and lasted about 50,000,000 years); the Farlovian Stage follows the Breconian and was named for exposures studied near the town of Farlow, in the English Midlands. Farlovian rocks consist of gray and yellow sandstones and shales that contain the primitive Upper Devonian fishlike vertebrates Bothriolepis and Holoptychius. Farlovian rocks were produced by strongly flowing rivers.