conodonts

听听怎么读

英 [k?n?'d?nts]

美 [k?n?'d?nts]

是什么意思

释义

牙形石；

英英释义

conodont[ 'k?un?,d?nt ]

n.
- the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta
- 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

学习怎么用

权威例句

Conodonts
Conodonts
Conodonts
The Anatomy of Conodonts
Conodonts: a major extinct group added to the vertebrates.
Presence of the earliest vertebrate hard tissue in conodonts
Strontium isotope systematics of conodonts: Middle Devonian, Eifel Mountains, Germany
Oxygen isotope variations in phosphate of biogenic apatites, III. Conodonts
The structure of some Middle Cambrian conodonts, and the early evolution of conodont structure and function
Decay of Branchiostoma: implications for soft‐tissue preservation in conodonts and other primitive chordates

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