【摘要】 早二叠世早期地层命名为加温达板组(P₁¹ⁱ);而对原划分的空喀山口组（P₁k）重新厘定为早二叠世晚期地层,但仍沿用空喀山口组这个地层名称,只是将其符号改为（P₁²k）。根据所产化石的特征,将空喀山口地区划归早二叠世冈瓦纳生物地理区的范围,它们与欧亚生物地理区的界线,应该北移至康西瓦大断裂一带。更多还原

【Abstract】 In the stratigraphic division, the Early Permian strata are named as Jiawendaban Formation (P11j) ; the previously established Kongkeshankou Formation (P1 k)is revised as the Early Permian late strata. The stratigraphic name of Kongkeshankou Formation is yet used, but its symbol is changed from (P1k) to (P12k). Based on the fossil features, Kongkeshankou area is referred to the Early Permian Gangwana biogeographic region, and the boundary between it and the Europe-Asia biogeographic region would be a large Kangxiwa fracture zone.更多还原