The paleontological characteristics of the boundary Artinian-Kungurian deposits of the Mechetlino section are given. The main faunal groups (conodonts, ammonoids, foraminifera, brachiopods, fish, trilobites) are described; the evolutionary development of genera of conodonts and ammonoids is considered. The distribution of characteristic assemblages along a section is shown in detail, and their time variation is analyzed.