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研究了华南上扬子区5条出露完好的下、中奥陶统剖面的生物地层,识别出了研究区下奥陶统至上奥陶统底部8个几丁虫带及2个几丁虫亚带,由下至上分别是Lagenochitina pestovoensis带,Euconochitina symmetrica带,未命名带1,Desmochitina maotaiensis带,Sagenachitina dapingensis带,Lagenochitina esthonica elongate带,未命名带2,Laufeldochitina stentor带,Cyathochitinasp.3亚带及Armoricochitina granulifera亚带。这些化石带与区内同期笔石带、牙形类带以及区外主要块体同期几丁虫带可以进行对比。
In this study, five well-uncovered middle and lower Ordovician biota stratigraphy were studied in the upwelling sub-region of South China. Eight chitin belts and two chitin bugs were identified in the bottom of the Lower Ordovician Upper Ordovician in the study area The bands from bottom to top are Lagenochitina pestovoensis zone, Euconochitina symmetrica zone, unnamed zone 1, Desmochitina maotaiensis zone, Sagenachitina dapingensis zone, Lagenochitina esthonica elongate zone, unnamed zone 2, Laufeldochitina stentor zone, Cyathochitinasp.3 subband and Armoricochitina granulifera Sub-belt. These fossil zones can be compared with the syncline penicilli and conodont belts as well as the chitin belts in the same period in the same period.