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报道了湖南益阳晚特马道克期至弗洛早期笔石页岩中的几丁石和疑源类化石,并识别出3个几丁石生物带以及3个疑源类组合带。几丁石、疑源类化石与笔石共生,使得识别出的几丁石带以及疑源类化石组合的时代可以根据笔石带校正。在江南斜坡区建立的连续的晚特马豆克期及弗洛期最早期的几丁石、疑源类序列,不但可与国内外同期地层进行精确对比,对于早奥陶世古生物地理的研究同样具有一定意义。
The authors report on the chitin and the suspected source fossils in the pentelic shale from the Late Temasek period of Yiyang, Hunan Province to the early Phloxen period, and identified three chitin biozones and three suspected combination zones. Chitin, suspected source fossils and pen-stone symbiosis, making identification of the chitin belt and doubtful fossil assemblage era can be corrected according to pen-stone. The continuous Late Late Temasek period and the earliest Oligochitin and sequence of suspected source rocks in the Jiangnan Slope are not only accurately compared with the contemporaneous strata at home and abroad. For the study of the paleobiogeography of the Early Ordovician The same is of some significance.