conodont
英['kəʊnədɒnt]
美['koʊnəˌdɒnt]
- n. [古生]牙形刺；牙形石
详细释义
Noun:
-
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
双语例句
- 1. We also concisely described the characteristics of the conodont fauna through the boundary strata.
- 本文对深海硅质岩系中这一界线地层牙形石动物群特征进行了简要的描述。
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- 2. The soft anatomy of conodont shows some soft tissues including eyes, notochord, nerve cord, myomeres and caudal fin.
- 英国古生物学家们通过牙形石动物的软体解剖学研究，发现眼睛、脊索、神经索、肌肉组织、尾鳍等软组织；
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- 3. A detailed research has been worked on the Late Upper Permian conodont fauna of Tieshikou section in Xinfeng area, Jiangxi Province.
- 对江西省信丰县铁石口剖面晚二叠世长兴阶至铁石口阶下部的牙形石动物群有了新的认识。
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- 4. Three failing periods of conodont are influenced by two ice ages, five sea-level changes and rainfalls in the geological history time.
- 三个衰退期受到地史时期中的二大冰期，五次海平面变化和大气降雨量的影响。
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- 5. In the 1980s, however, paleontologists found full fossilized conodont specimens, and only recently have scientists begun to unravel their secrets.
- 不过，在20世纪80年代，古生物学者发现了完整的牙形刺化石标本，而直到最近科学家们才开始揭露出它们的秘密。
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- 6. Main production suitable for all kinds of electric bicycle, tricycles, use of lead-acid battery, its products conodont and midfielder two brands.
- 主要生产适合各种电动自行车、三轮车使用的铅酸、胶体蓄电池，旗下产品分武世、悍将两个品牌。
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- 7. Based on an analysis of the conodont biofacies, it is inferred that there was probably a deep-sea basin facies sedimentary environment in the Wenguer area during the early Middle Permian.
- 通过牙形石生物相分析，推断温古尔地区中二叠世早期可能为盆地相较深水沉积环境。
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- 8. Based on an analysis of the conodont biofacies, it is inferred that there was probably a deep-sea basin facies sedimentary environment in the Wenguer area during the early Middle Permian.
- 通过牙形石生物相分析，推断温古尔地区中二叠世早期可能为盆地相较深水沉积环境。
youdao
- 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。
用作名词 (n.)
用法讲解
- fibrous conodont 纤维牙形虫
- compound conodont 复合牙形石
相关词汇
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