单词 Callovian 释义 Callovian, a. Geol.|klvn|Also Kellovian.[ad. F. callovien (A. d'Orbigny Palont. française. Terrains jurassiques (1842) I. 608), f. mod.L. Callovien-sis, f. Kellaways (given by d'Orbigny as Kelloway), a village in Wiltshire.]Epith...