conodont

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta
• Hypernyms:
tooth
2. 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
• Hypernyms:
jawless vertebrate, jawless fish, agnathan
• Member Holonyms:
Conodonta, order Conodonta, Conodontophorida, order Conodontophorida