1. Conservative Nature of Biomineral Structures as a Challenge for the Cladistic Method of Phylogeny Reconstruction (Illustrated by Two Groups of Dinosaur Eggs)

   • K. E. Mikhailov

   OriginalPaper 27 January 2020 Pages: 551 - 565

   

2. Trace Fossils from the Vendian-Cambrian Transitional Strata of the Igarka Uplift (Northwestern Siberian Platform)

   • I. V. Korovnikov
   • V. V. Marusin
   • O. T. Obut

   OriginalPaper 27 January 2020 Pages: 566 - 574

   

3. Early Cambrian Tommotiids of Khairkhan Section (Central Tyva)

   • N. V. Novozhilova
   • M. Steiner
   • D. A. Tokarev

   OriginalPaper 27 January 2020 Pages: 575 - 582

   

4. On the Upper Maastrichtian Oysters of the Genus Rhynchostreon Bayle (Bivalvia, Gryphaeidae) from the Mountainous Crimea

   • I. N. Kosenko

   OriginalPaper 27 January 2020 Pages: 583 - 592

   

5. New Species of the Genus Chelotia (Pleurotomariidae, Gastropoda) from the Middle Eocene of Ukraine

   • A. A. Berezovsky
   • J.-M. Pacaud

   OriginalPaper 27 January 2020 Pages: 593 - 597

   

6. Craspeditidae (Ammonoidea) of the Russian Platform at the Jurassic–Cretaceous Boundary. II. Genus Hectoroceras Spath

   • V. V. Mitta

   OriginalPaper 27 January 2020 Pages: 598 - 610

   

7. New Spiriferids (Brachiopoda) from the Middle–Late Permian of Northeastern Mongolian Boreal Basin

   • I. N. Manankov

   OriginalPaper 27 January 2020 Pages: 611 - 615

   

8. A New Method for Description of Smooth Ostracod Shells, Using Permian and Triassic Ostracods from Eastern Europe

   • M. A. Naumcheva

   OriginalPaper 27 January 2020 Pages: 616 - 628

   

9. New Conodont Species from the Famennian (Upper Devonian) of the Urals

   • A. N. Plotitsyn
   • Yu. A. Gatovsky

   OriginalPaper 27 January 2020 Pages: 629 - 635

   

10. The First Record of a Lungfish (Dipnoi, Sarcopterygii) in the Famennian Deposits (Upper Devonian) of the Tver Oblast

    • O. A. Lebedev
    • N. I. Krupina
    • V. V. Linkevich

    OriginalPaper 27 January 2020 Pages: 636 - 646

    

11. Turtles Protestudo bessarabica from the Late Miocene of Ukraine

    • E. V. Syromyatnikova
    • T. V. Krakhmalnaya
    • I. G. Danilov

    OriginalPaper 27 January 2020 Pages: 647 - 659

    

12. Finds of Ruminants and New Data on the Stratigraphy of the Late Miocene Locality of Fortep’yanka 2 (Northwest Caucasus, Adygea Republic)

    • I. A. Vislobokova
    • K. K. Tarasenko

    OriginalPaper 27 January 2020 Pages: 660 - 665