The book "Gorgonopsid from the North Dvina Excavations of 1923" was written by Pavel Alexandrovich Orthodoxy and published in 1927 in Leningrad by the Publishing House of the USSR Academy of Sciences. It is part of the series "North Dvina Excavations of Professor V. P. It is dedicated to the fossil remains of Gorgonopsidae from the North Dvina excavations, which were carried out in 1923. Main characteristics of the book: Author: P. A. Pravoslavlev Editor: Academician A. P. Karpinsky Publisher: USSR Academy of Sciences Year of publication: 1927 Volume: 20 pages + 2 additional inserts with illustrations 900 copies. Size: 30 x 21 cm Topic: Paleontology, vertebrate fossils, gorgonopsids The book describes in detail the fossil remains of gorgonopsid (a group of extinct therapsids) and presents a new genus and species Amalitzkia Annae. These materials were discovered during the excavations of V. P. Amalitsky, a famous paleontologist, who collected one of the largest collections of Perm vertebrates. The study includes a description of two almost complete skeletons mounted by Amalitsky and exhibited in St. Petersburg at the beginning of the 20th century The book is a rare and valuable scientific publication on paleontology, especially interesting for collectors, scientists and researchers engaged in the Permian period and the evolution of ancient vertebrates.