Using conodont elements to distinguish permian-triassic boundary disconformity near haftad gholleh, central iran

The present study focuses on stratigraphy of the Permo-Triassic boundary in the Haftad Gholleh in the east Arak and north of the Mahallat, which is located in central Iran. This boundary is an erosional unconformity or disconformity and as in other Iranian sequences related to the Permian contains d...