Abstract.  Late Paleozoic ammonoid classification made down to the generic level is presented.
 Number of species, stratigraphic range and geographic distribution are given for each genus.
 When compiling the classification, the authors relied upon the theoretical principles of
 phylogeny and systematics elaborated by V.E.Ruzhencev, and have used the large factual
 material obtained in recent years by many specialists.  Researches of the authors themselves
 and critical analysis of publications containing data on onto-phylogenetic investigations, and
 those on the precision of ammonoid genera ranges allowed to reconstruct relationships among
 taxa of various rank, to determine the moments of appearance of new features and the main
 evolutionary trends of most major ammonoid groups and to compile now phylogenetic schemes.
 On the basis of these achievements in ammonoid investigation, the authors have formed their
 own notion about the evolution of Late Paleozoic ammonoids, which is reflected in the presented
 classification.  Late Paleozoic ammonoids are assigned to three orders: Prolecanitida (Early
 Tournaisian - Scythian), Goniatitida (Paleozoic) and Ceratitida (Roadian-Rhaetian).
 Prolecanitids are subdivided into two suborders: Tournaisian-Wordian Prolecanitina
 (1 superfamily, 2 families, 12 genera and about 110 species) and Late Visean-Scythian
 Medlicottiina (2, 7, 41 and about 210 Late Paleozoic species).  Late Paleozoic goniatitids are
 represented by three suborders: Givetian-Dorashamian Tornoceratina (2, 4, 9, about 150
 species from the Late Paleozoic), by provisionally accepted Famennian-Serpukhovian
 Praeglyphioceratina (2, 3, 9 and 12 species from the Early Carboniferous), and Tournaisian-
 Dorashamian Goniatitina (18, 62, 342 and more than 1850 species).  Ceratitids are represented
 in the Permian by two suborders: Roadian-Dorashamian Paraceltitina (1, 4, 18 and about 80
 species), and Dzhulfian-Scythian Otoceratina (1, 2, 13 and 44 species from the Late Perm).
 Taxonomic position of six genera remains unclear (Gleboceras, Eupleuroceras, Kurdiceras,
 Pennoceras, Prehoffmannia, Yinoceras).  Two tables are compiled, which reflect authors' views
 on the interregional correlation of Carboniferous and Permian deposits, and on the stratigraphic
 ranges of Late Paleozoic ammonoid genera.