1. Some problems of the origin of the vertebrata

   • L. P. Tatarinov

   OriginalPaper 29 September 2011 Pages: 477 - 482

2. New larger foraminifers from the Eocene of the Crimea (Ukraine) and Mangyshlak (Western Kazakhstan)

   • E. Yu. Zakrevskaya

   OriginalPaper 29 September 2011 Pages: 483 - 493

3. Developmental stages of Permian bivalves of northeast Asia

   • A. S. Biakov

   OriginalPaper 29 September 2011 Pages: 494 - 500

4. New data on the genus Praeglyphioceras (Praeglyphioceratidae, Ammonoidea)

   • S. V. Nikolaeva

   OriginalPaper 29 September 2011 Pages: 501 - 509

5. Family coelotubuliporidae fam. nov. and morphological parallelisms in the evolution of bryozoans

   • R. V. Gorjunova

   OriginalPaper 29 September 2011 Pages: 510 - 524

6. Some evolutionary features of bryozoans of the genus Neotrematopora Morozova and new Neotrematopora species from the Devonian of the Salair Ridge and Rudnyi Altai (Russia)

   • O. P. Mezentseva

   OriginalPaper 29 September 2011 Pages: 525 - 536

7. New and little known grylloblattida (Insecta) from intertrappean deposits of the Tunguska Basin of Sibiria

   • D. S. Aristov

   OriginalPaper 29 September 2011 Pages: 537 - 545

8. New bugs of the family Archegocimicidae (Hemiptera: Heteroptera) from the Upper Jurassic of Mongolia

   • O. V. Ryzhkova

   OriginalPaper 29 September 2011 Pages: 546 - 551

9. New stoneflies (Insecta: Perlida = Plecoptera) from the late Mesozoic locality Khasurty, Transbaikalia

   • N. D. Sinitshenkova

   OriginalPaper 29 September 2011 Pages: 552 - 558

10. New species of the genus Orchesia Latr. from the Upper Eocene (Coleoptera, Tenebrionoidea)

    • N. B. Nikitsky

    OriginalPaper 29 September 2011 Pages: 559 - 562

11. A new species of Pelekysgnathus (Conodonts) from the Famennian of the east Russian Platform

    • V. N. Pazukhin
    • Yu. A. Gatovsky

    OriginalPaper 29 September 2011 Pages: 563 - 566

12. On the morphology and taxonomic position of Ungulaspis arctoa (Osteostraci, Agnatha) from the lower devonian of the Severnaya Zemlya archipelago

    • O. B. Afanassieva

    OriginalPaper 29 September 2011 Pages: 567 - 571

13. Ardea sytchevskayae sp. nov., a new heron species (Aves: Ardeidae) from the Middle Miocene of Mongolia

    • N. V. Zelenkov

    OriginalPaper 29 September 2011 Pages: 572 - 579

14. Genus Callixylon Zalessky (Archaeopteridophyta): Main criteria for distinguishing its species and revision of its species composition

    • O. A. Orlova
    • A. L. Jurina

    OriginalPaper 29 September 2011 Pages: 580 - 589

15. On the 75th birthday of Alexander Pavlovich Rasnitsyn

    Announcement 29 September 2011 Pages: 590 - 592