单词：conodonts
(conodont 的复数) n.[古生]牙形刺, 牙形石
plural of conodont
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 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