The taxonomic diversity and geographical distribution of five successive Permian ammonoid assemblages from
the Pamir (Asselian, Sakmarian, Artian, Kungurian, and Roadian) are analyzed. A high taxonomic   diversity and
high number of endemic taxa, the first appearances of many genera, an explosive divergence of taxa migrating
to this region, and the presence of complete phylogenetic lineages indicate that the Pamirian Basin was proba-
bly the largest center of morphogenesis and diversification, particularly in the second half of the Permian.