1. Foreword

   Events 20 December 2021 Pages: 715 - 716

2. Symmetry of Vendobionta (Late Precambrian Metazoa)

   • A. Yu. Ivantsov
   • M. A. Zakrevskaya

   OriginalPaper 20 December 2021 Pages: 717 - 726

   

3. Trilobozoa, Precambrian Tri-Radial Organisms

   • A. Yu. Ivantsov
   • M. A. Zakrevskaya

   OriginalPaper 20 December 2021 Pages: 727 - 741

   

4. Morphophysiological Peculiarities of Articulated Brachiopods and Marine Bryozoans as a Reason for Their Different Evolutionary Consequences of the Permian–Triassic Crisis

   • G. A. Afanasjeva
   • L. A. Viskova

   OriginalPaper 20 December 2021 Pages: 742 - 751

5. Study of the Early Telencephalon Genes of Cyclostomes as a Way to Restoring the Evolutionary History of This Unique Part of the Central Nervous System of Vertebrates

   • G. V. Ermakova
   • A. V. Kucheryavyy
   • A. V. Bayramov

   OriginalPaper 20 December 2021 Pages: 752 - 765

   

6. Origin of the Class Holothuroidea

   • A. V. Smirnov

   OriginalPaper 20 December 2021 Pages: 766 - 786

   

7. Role of Heterochronies in the Formation of the Morphological Features of Amphibians in Urban Areas

   • V. L. Vershinin
   • S. D. Vershinina

   OriginalPaper 20 December 2021 Pages: 787 - 791

8. Problems and Debated Issues in the Concepton Modular Organization: On the Example of Lower Metazoa

   • I. A. Kosevich

   OriginalPaper 20 December 2021 Pages: 792 - 802

   

9. Reproductive Strategies and Patterns in Marine Invertebrates: Diversity and Evolution

   • A. N. Ostrovsky

   OriginalPaper 20 December 2021 Pages: 803 - 810

10. Evolutionary Transformations of the Metazoan Body Plan: Genomic-Morphogenetic Correlations

    • V. V. Isaeva
    • S. V. Rozhnov

    OriginalPaper 20 December 2021 Pages: 811 - 824