1) paraconodonts
副牙形石
1.
Little is known about the evolutionary trends of the coniform paraconodonts.
单锥副牙形石的演化趋向尚不清楚。
2) Parachirognathus
副掌颚牙形石属
3) Parapolygnathus
副多颚牙形石属
4) conodonts
牙形石
1.
Geochemical characteristics of paleoseawater from the Early Ordovician of Yangtze Craton: Evidence from the trace elements in conodonts;
扬子克拉通早奥陶世古海水地球化学特征:来自牙形石微量元素的证据
2.
Based on the study about silurian conodonts in the northern section of Longmen Mountain,4 conodont zones,including 6 subzones,were built in this area for the first time.
作者通过对龙门山北段志留纪牙形石的研究,首次建立了本区的牙形石带四个,亚带六个,自下而上为Spathognathodus obesus带,包括上、下两个亚带A和B;Spathognathodus parahassi—P。
3.
During 1∶50000 regional geological and mineral survey,some conodonts fossils such as of Streptognathodus suberectus,Idiognathoides sinuate et al.
1∶5万区域地质矿产调查于东天山库姆塔格沙垄地区康古尔塔格深大断裂北侧灰岩中,发现了Streptognathodus suberectus,Idiognathoides sinuata等牙形石,确认其地质时代为晚石炭世达拉阶,该套地层归属哈尔里克地层小区底坎儿组,具有弧后盆地建造特色。
5) conodont
[英]['kəunədɔnt] [美]['konə,dɑnt, 'kɑnə-]
牙形石
1.
Triassic conodont biostratigraphy in the Coqên area, western Gangdise, Tibet, China;
西藏冈底斯西段措勤地区三叠纪牙形石生物地层特征
2.
Discovery of Permian and Triassic conodonts in the Shiquanhe area, Ngari, western Tibet, Chian and their significances;
西藏西部狮泉河地区二叠纪和三叠纪牙形石的发现及其意义
3.
The Late Carboniferous conodont Neognathodus fauna in Xainza,Tibet,China,and its significance.;
西藏申扎地区晚石炭世牙形石Neognathodus动物群的特征及其意义
6) conodont zone
牙形石带
1.
Nine conodont zones, two conodont assemblage zones and one graptolite zone have been distinguished in a descending order, resulting in the establishment of six stages, i.
首次提供了四川盐边地区从下志留统至下泥盆统连续的志留系年代地层系统的实际证据和原始材料,由上而下建立8个牙形石带,2个牙形石组合带和1个笔石带,以此为依据建立了攀枝花阶、永兴阶、箐河阶、叉河阶、透底河阶和支六阶,分别归入下泥盆统、顶志留统、上志留统、中志留统和下志留统,为我国志留系安康阶以上地层的建阶研究工作提供了实际的基础资料。
补充资料：石牙
1.齿状之石。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条