Comments on the Paper of B.P. Vjuschkov “Locality of Permian Terrestrial Vertebrates in the Vicinities of the Town of Vyazniki”

The paper of B.P. Vjuschkov considering Late Permian vertebrates from the Vyazniki locality, prepared more than half a century ago and remained unpublished until the present time, was the first preliminary generalization of the geological and paleontological data on this burial. The material of this study collected by Vjuschkov during excavations in 1955–1957 revealed a unique composition of the local tetrapod assemblage compared to previously known contemporaneous analogues. Further studies of the Vyazniki fauna performed during the last decades provided a better understanding of its composition and age, showing that it is of paramount importance as a record of the terminal episode in the history of the Paleozoic precrisis biota.