New Radiolarian Species from the Lower Carboniferous of the Volga–Ural Basin and the Upper Carboniferous of the South Urals of Russia M. S. Afanasieva OriginalPaper 25 August 2023 Pages: 353 - 365
New Radiolarian Species of the Genus Patellula Kozlova from the Turonian–Maastrichtian Sections of Cyprus and Crimea L. G. Bragina OriginalPaper 25 August 2023 Pages: 366 - 374
The Earliest Representatives of the Genus Pinna (Bivalvia), from the Early Permian Reef of Shakhtau (Southern Cisuralia, Russia) L. E. ShilekhinA. V. MazaevA. S. Biakov OriginalPaper 25 August 2023 Pages: 375 - 379
New Nautilida from the Shakhtau Asselian–Sakmarian Reef Complex (Bashkortostan) T. B. LeonovaA. Yu. Shedukhin OriginalPaper 25 August 2023 Pages: 380 - 391
On the Garantianinae (Ammonoidea: Stephanoceratidae) from the Upper Bajocian of the Kuban River Basin (Northern Caucasus, Russia) V. V. Mitta OriginalPaper 25 August 2023 Pages: 392 - 400
Shell Microstructure and Microornamentation of Three Lingulate Genera of the Families Discinidae and Trematidae from the Famennian of the New Siberian Islands T. N. SmirnovaYu. A. GatovskyE. A. Zhegallo OriginalPaper 25 August 2023 Pages: 401 - 409
New Species of the Genus Oryctocephalus Walcott from the Middle Cambrian of the Siberian Platform I. V. Korovnikov OriginalPaper 25 August 2023 Pages: 410 - 416
A Review of the Triassic Stoneflies (Insecta: Perlida = Plecoptera) with a Description of a New Genus and Species of the Family Perlariopseidae from the Dzhayloucho Locality, Kyrgyzstan N. D. Sinitshenkova OriginalPaper 25 August 2023 Pages: 417 - 421
New and Little Known Permosialidae (Insecta: Palaeomanteida) from the Upper Permian of Mongolia and the Middle or Upper Triassic of Kyrgyzstan D. S. AristovA. P. Rasnitsyn OriginalPaper 25 August 2023 Pages: 422 - 431
Some Morphofunctional Features of the Tail of Early Archosaurs Related to Swimming Adaptations A. G. Sennikov OriginalPaper 25 August 2023 Pages: 432 - 451
Small Ducks (Aves: Anatidae) from the Early–Middle Miocene of Eurasia. 1. A revision of Anas velox Milne-Edwards, 1868 and Anas soporata Kurochkin, 1976 N. V. Zelenkov OriginalPaper 25 August 2023 Pages: 452 - 462
A New Antelope Tavridia gromovi gen. et sp. nov. (Artiodactyla, Bovidae) from the Lower Pleistocene of the Taurida Cave in the Crimea I. A. Vislobokova OriginalPaper 25 August 2023 Pages: 463 - 472
Uraloverneuilites nom. nov.: Replacement Name for the Preoccupied Genus Name Verneuilites Bensh et Kireeva, 1987 (Foraminifera; Permian) T. N. Isakova QUESTIONS OF NOMENCLATURE 25 August 2023 Pages: 473 - 473