单词:conodont
音标:['kәunәdɔnt, 'kɔnә-] ;
n. [古生]牙形刺, 牙形石
n the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta
n small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes
n small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes
词型变化:名词复数形式 : conodonts
conodont的用法和样例:
例句
用作名词(n.)
- The Silurian strata containing abundant conodont fossils are well developed and comformable with the overlying Devonian strata in the Baizitian region, northern Yanbian, Sichuan.四川省盐边县北部稗子田地区的志留系发育良好,牙形刺化石极为丰富,与上覆泥盆系连续沉积,并呈整合接触。
词汇搭配
- fibrous conodont纤维牙形虫
- compound conodont复合牙形石