- 更多网络例句与牙形刺相关的网络例句 [注：此内容来源于网络，仅供参考]
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According to conodont ,coral and foraminifera fossils discovered,the geological age of this sequence of sedimentary strata is Early Carboniferous.
根据所发现的牙形刺、珊瑚、非有孔虫化石，确定其地质时代为早石炭世。
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The upper part of this section called the Alugong Formation, belongs to the Lochkovian of early Devonian, because typical Lochkovian conodont genus Ancyrodelloides and Lanea have been found.
剖面的上部为下泥盆统阿鲁共组，时代为Lochkovian 阶，发现了下泥盆统Lochkovian阶特有的牙形刺属Ancyrodelloides， Lanea。
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Its age has been much debated. The conodont study clearly shows that the lower and middle part of the Xibiehe section should be assigned to the Late Silurian Xibiehe Formation based on the finding of Ozarkodina uncrispa which can correlate with the lower part of Ozarkodina crispa Zone.
西别河剖面的牙形刺研究表明：西别河剖面的下、中部应归入上志留亚系，发现了可与Ludlow统标准牙形刺带Ozarkodina crispa对比的牙形刺Ozarkodina uncrispa。
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However,according to the stratigraphic sequence,petrology and conodont revised by An T.X.,the formation may be not the Silurian,while it is the Middle Ordovician correlated to the Badou Member of Fengfeng Formation in North China or partial Yuexian Formation.
李河荣等根据牙形刺将朝鲜半岛太白山盆地的桧洞里组划归志留系，但是从层序、岩石和安太庠修定的牙形刺化石来看，桧洞里组可能不是志留系，而是与中朝地台华北区峰峰组八陡段可比的中奥陶世地层。
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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。
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A Paleozoic microfossil usually having a toothlike shape and considered to be the remains of an extinct marine organism.
牙形刺一种古生代微化石，一般有牙状形体，被认为是一种已灭绝海生生物体的残骸
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The Nashui section of Luodian,Guizhou is a good section for the study of the Pennsylvanian conodonts and the stage boundaries.
贵州罗甸纳水剖面是研究宾夕法尼亚亚系牙形刺和各阶界线的良好剖面。
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There are plant stems in the middle of the concretions. The contents of fossils such as crinoids, bivalves, ammonoids and conodonts in the concretions are notably higher than those in rocks around the concretions. Many fossils are directly attached to the plant stems.
这些结核中部都有植物茎干，结核内的海百合、双壳、菊石、牙形刺等生物化石含量明显高于结核周围的岩石，且有许多生物化石直接附着在植物茎干上。
- 更多网络解释与牙形刺相关的网络解释 [注：此内容来源于网络，仅供参考]
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Acadian series：阿卡迪亚统
阿卡迪亚造山运动 Acadian orogeny | 阿卡迪亚统 Acadian series | 刺棘肿牙形石属 Acanthocordylodus
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conodont：牙形刺,牙形石
connubially | 婚姻上, 夫妇般地 | conodont | 牙形刺, 牙形石 | conoid integral | 角面积分
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conodont：牙形刺
chorion 蛋壳膜 | conodont牙形刺 | cyanobacteria蓝藻
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gondite：锰铝榴英岩
楔角石 Gomphoceras | 锰铝榴英岩 gondite | 牙形刺 Gondolella
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conoid integral：角面积分
conodont | 牙形刺, 牙形石 | conoid integral | 角面积分 | conoid | 劈锥曲面