二叠纪－三叠纪
permian-triassic
Changxing Feixianguan formations
二叠纪－三叠纪界线
permian-triassic boundary
二叠纪－三叠纪界线地层
permian-triassic boundary
Permian-Triassic boundary section
二叠纪—三叠纪牙形石
Permian-Triassic conodont
二叠纪－三叠纪之交
Permian-Triassic interval
二叠／三叠纪界线
permian-triassic boundary
二叠－三叠纪
permian-triassic
Permian to Triassic Period
二叠／三叠系界线层
Permian-Triassic boundary beds
二叠─三叠系界线
permian-triassic boundary
二叠纪末—三叠纪初
latest Permian-earliest Triassic
二叠—三叠过渡层
the Permian-Triassic transitional bed
二叠－三叠系界线
permian-triassic boundary
P-T boundary
二叠—三叠系界线
permian-triassic boundary