1. Foreword

   Events 06 February 2023 Pages: 1255 - 1256

2. Amphibian Ontogeny: Major Trends, Mechanisms, and Paradoxes of Evolution

   • S. V. Smirnov
   • A. B. Vassilieva

   OriginalPaper 06 February 2023 Pages: 1257 - 1273

   

3. Origin and Early Evolution of Mammals

   • A. K. Agadzhanyan

   OriginalPaper 06 February 2023 Pages: 1274 - 1305

   

4. Solutans (Echinoderms): Evolution Frozen between Torsion and Pentaradiality

   • S. V. Rozhnov

   OriginalPaper 06 February 2023 Pages: 1306 - 1321

   

5. Morphological Diversity of Carboniferous Ammonoids of Central Asia and Kazakhstan

   • S. V. Nikolaeva

   OriginalPaper 06 February 2023 Pages: 1322 - 1351

   

6. New Ray-Finned Fishes (Actinopterygii, Osteichthyes) from the Permian of European Russia

   • D. N. Esin
   • A. S. Bakaev

   OriginalPaper 06 February 2023 Pages: 1352 - 1362

   

7. Minicholepis primus gen. et sp. nov., a New Eurynotoidiform Fish (Actinopterygii) from the Permian of European Russia

   • V. V. Bulanov
   • A. V. Minikh
   • V. K. Golubev

   OriginalPaper 06 February 2023 Pages: 1363 - 1371

   

8. Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia

   • A. O. Ivanov
   • E. S. Kovalenko
   • K. M. Podurets

   OriginalPaper 06 February 2023 Pages: 1372 - 1384

   

9. A New Species of the Genus Ceratodus (Dipnoi, Ceratodontidae) from the Triassic of the Southern Cis-Urals

   • A. V. Minikh

   OriginalPaper 06 February 2023 Pages: 1385 - 1390

   

10. A New Pseudosuchian from the Early Triassic of Eastern Europe

    • A. G. Sennikov

    OriginalPaper 06 February 2023 Pages: 1391 - 1418

    

11. New Primitive Therocephalians from the Permian of Eastern Europe

    • Yu. A. Suchkova
    • V. K. Golubev
    • I. S. Shumov

    OriginalPaper 06 February 2023 Pages: 1419 - 1427

    

12. Review of Records of Mioproteus (Caudata: Proteidae) from Southeastern Europe

    • E. V. Syromyatnikova

    OriginalPaper 06 February 2023 Pages: 1428 - 1436

    

13. Topographic Morphology of the Postcranial Osteoderm Cover of an Adult Scutosaurus tuberculatus (Amalitzky) (Pareiasaurina) from the Late Permian of Eastern Europe

    • E. I. Boyarinova
    • V. K. Golubev

    OriginalPaper 06 February 2023 Pages: 1437 - 1458

    

14. New Data on Late Jurassic Ichthyosaurs of the Genus Grendelius from European Russia

    • N. G. Zverkov
    • M. S. Arkhangelsky
    • I. M. Stenshin

    OriginalPaper 06 February 2023 Pages: 1459 - 1481

    

15. Incomplete Large Lower Jaw of Vladlenosaurus alexeyevi from the Lower Triassic of the Luza River (Komi Republic, Russia) and Growth Features in Temnospondyl Amphibians

    • B. I. Morkovin

    OriginalPaper 06 February 2023 Pages: 1482 - 1490

    

16. Paleosols and Tetrapod Tracks from the Lower Cretaceous of the Northern Caucasus

    • S. V. Naugolnykh

    OriginalPaper 06 February 2023 Pages: 1491 - 1511

    

17. Age and Correlation of the Bone-Bearing Puesto Viejo Group, Triassic of Argentina

    • S. G. Lucas
    • P. J. Hancox

    OriginalPaper 06 February 2023 Pages: 1512 - 1517

    

18. Definition, Correlation and Age of the Cynognathus Assemblage Zone, Lower–Middle Triassic of Pangea

    • S. G. Lucas
    • P. J. Hancox

    OriginalPaper 06 February 2023 Pages: 1518 - 1537

    

19. Paleoecological and Depositional Environment of Permian Copper-Bearing Sandstone Fossil Plants and Tetrapod Localities: Records from Bashkortostan and Kargalka River Basin, Orenburg Region, Russia

    • S. V. Naugolnykh
    • A. V. Ivanov
    • I. V. Novikov

    OriginalPaper 06 February 2023 Pages: 1538 - 1555