1. Introduction

   Announcement 28 November 2013 Pages: 951 - 952

2. The steps of vascular plant and land ecosystem evolution

   • Yu. V. Gamalei
   • S. N. Scheremet’ev

   OriginalPaper 28 November 2013 Pages: 953 - 960

3. At the dawn of the aerobic biosphere: The effect of oxygen on the development of biota in the Proterozoic and Early Paleozoic

   • S. V. Rozhnov

   OriginalPaper 28 November 2013 Pages: 961 - 972

4. Prokaryotes in the Early Precambrian

   • M. M. Astafieva

   OriginalPaper 28 November 2013 Pages: 973 - 976

5. Bacterial, fungal, and algal microfossils in the Lower Proterozoic Baikal region of Siberia (Udokan and Sayany Mountains)

   • A. M. Stanevich
   • A. A. Postnikov
   • N. V. Popov

   OriginalPaper 28 November 2013 Pages: 977 - 983

6. Humic substances in the early biosphere

   • A. G. Zavarzina
   • G. A. Zavarzin

   OriginalPaper 28 November 2013 Pages: 984 - 988

7. Cambrian algoflora: Association of various microorganism groups

   • V. A. Luchinina

   OriginalPaper 28 November 2013 Pages: 989 - 996

8. Evolution of geological processes on the early earth and their impact on the early biosphere

   • E. V. Sharkov

   OriginalPaper 28 November 2013 Pages: 997 - 1000

9. The origin of ancestral bacterial metabolism

   • S. A. Marakushev
   • O. V. Belonogova

   OriginalPaper 28 November 2013 Pages: 1001 - 1010

10. Biogeographic evolution of Permian ammonoids

    • T. B. Leonova

    OriginalPaper 28 November 2013 Pages: 1011 - 1015

11. The emergence of molecular machines as a prerequisite of the ancient RNA world evolution

    • A. S. Spirin

    OriginalPaper 28 November 2013 Pages: 1016 - 1029

12. Effect of bacteria from the bottom water layer of lake baikal on degradation of diatoms

    • Yu. R. Zakharova
    • M. I. Kurilkina
    • E. V. Likhoshway

    OriginalPaper 28 November 2013 Pages: 1030 - 1034

13. Parallel occurrence of asynaptic sex chromosomes in gray voles (Microtus Schrank, 1798)

    • P. M. Borodin
    • E. A. Basheva
    • A. A. Torgasheva

    OriginalPaper 28 November 2013 Pages: 1035 - 1040

14. Phylogenetic analysis of housekeeping Archaeal proteins and early stages of Archaea evolution

    • K. V. Gunbin
    • V. V. Suslov
    • D. A. Afonnikov

    OriginalPaper 28 November 2013 Pages: 1041 - 1047

15. Par force evolution as a mechanism for rapid adaptation

    • V. V. Suslov

    OriginalPaper 28 November 2013 Pages: 1048 - 1055

16. Genome features and GC content in prokaryotic genomes in connection with environmental evolution

    • V. V. Suslov
    • D. A. Afonnikov
    • Yu. L. Orlov

    OriginalPaper 28 November 2013 Pages: 1056 - 1060

17. On the complex nature of primordial biological objects

    • Yu. N. Zhuravlev

    OriginalPaper 28 November 2013 Pages: 1061 - 1064

18. Evolution of the translation termination factors

    • G. A. Zhouravleva
    • S. A. Bondarev

    OriginalPaper 28 November 2013 Pages: 1065 - 1069

19. Space flight experiments with nonterrestrial minerals and bioorganic molecules

    • N. B. Gontareva
    • M. B. Simakov
    • E. A. Kuzicheva

    OriginalPaper 28 November 2013 Pages: 1070 - 1073

20. Photoexcited molecules of pteridine derivatives in prebiotic and biological evolution

    • M. S. Kritsky
    • T. A. Telegina
    • A. A. Buglak

    OriginalPaper 28 November 2013 Pages: 1074 - 1079

21. Abiotic model of photophosphorylation of ADP to ATP: Characteristics of photoreceptor pigments and the role of organosilicate matrix

    • T. A. Telegina
    • M. P. Kolesnikov
    • M. S. Kritsky

    OriginalPaper 28 November 2013 Pages: 1080 - 1084

22. Biological significance of protease diversity

    • N. N. Nemova
    • L. A. Lysenko

    OriginalPaper 28 November 2013 Pages: 1085 - 1088

23. Adaptive capabilities of microorganisms of salt lakes of the Altai Region under conditions of early Mars

    • A. V. Bryanskaya
    • A. A. Berezhnoy
    • A. K. Pavlov

    OriginalPaper 28 November 2013 Pages: 1089 - 1092

24. Plausible prebiotic synthesis of aldopentoses from simple substrates, glycolaldehyde and formaldehyde

    • I. V. Delidovich
    • O. P. Taran
    • V. N. Parmon

    OriginalPaper 28 November 2013 Pages: 1093 - 1096

25. Abiogenic synthesis of oligopeptides in the open space

    • M. B. Simakov
    • E. A. Kuzicheva
    • N. B. Gontareva

    OriginalPaper 28 November 2013 Pages: 1097 - 1103

26. Natural selection in prebiology

    • V. A. Avetisov

    OriginalPaper 28 November 2013 Pages: 1104 - 1106