云南中三叠世罗平生物群中首次发现牙形石齿串

Discovery of Middle Triassic Conodont Clusters from Luoping Fauna,Yunnan Province

通过对云南罗平中三叠统关岭组二段产罗平生物群的大凹子剖面进行厘米级牙形石样品的精细采样、处理与鉴定分析,发现了丰富的牙形石齿串,并拼绘出一个较完整的牙形石多分子器官属(P1、S0、S1、S2/3和M).成对的片形Neospathodiform形态分子占据P1位置;单个指掌状的Cypridodelliform形态分子占据S0位置;成对的Enantiognathiform、Hindeodelliform与Cypridodelliform形态分子分别占据器官属的S1、S2、S3和M位置.

Abundant conodont clusters were found after careful sampling, processing and analysis of the specimens in the Daaozi section of the second member of Guanling Formation yielding Luoping Fauna at the centimeter level. And a complete conodont multielement apparatus （P1, S0, S1, S2/3, M） was shown to us by fine identification and detailed analysis, including one pair of Pl elements （Neospathodiform）, one So element （Cypridodelliform）, pairs of S1 （Enantiognathiform）, R/So （Hindeodelli- form）, and M elements （Cypridodelliform）.