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甘肃境内侏罗、白垩纪轮藻的采集与研究程度不如我国南部的某些省份,尤其是早侏罗世及晚白垩世的轮藻尚未发现,无拟定组合进行讨论的材料,至于轮藻植物地理区划等有关问题更需探索。本文仅据笔者手头、包括收集到的轮藻化石鉴定名单,初步将中侏罗世至早白垩世轮藻草拟为8个组合,并依其时代意义对含化石地层的地质年代作了归属。是否妥
The Jurassic and Cretaceous Charolaes collected and studied in Gansu Province were not as good as those in some provinces in southern China, especially the Chalcedonia of the Early Jurassic and the Late Cretaceous. There was no proposed combination of materials for discussion. As for the Charophytes Geographical division and other issues need to be explored. Based on the author’s hand list, including the collected list of Chaetoceros fossils, the paper initially drafted the Charaemis to eight assemblages from Middle Jurassic to Early Cretaceous and assigned the geological age of the fossil-bearing formations according to their age significance. Is it right?