Paleontological Journal

, Volume 52, Issue 2, pp 188–200 | Cite as

Diversity of Middle Jurassic Turtles from the Berezovsk Quarry Locality, Krasnoyarsk Region, Russia: Morphology and Histological Study

  • I. G. Danilov
  • E. M. Obraztsova
  • E. A. Boitsova
  • P. P. Skutschas


Abstract—Morphology and histology of several fragmentary turtle specimens from the Middle Jurassic locality in the Berezovsk quarry (Krasnoyarsk Region, Russia) are described, including Testudines indet. 1 (costal VIII), Testudines indet. 2 (two ornamented shell fragments), and Testudines indet. 3 (distal part of a humerus), and also skeletal elements of Annemys sp. (Xinjiangchelyidae) represented by mass material in the same locality. It is shown that Testudines indet. 1 and 3 probably belong to one or two taxa of basal aquatic turtles, while Testudines indet. 2 is most likely an abnormal Annemys sp. The presumable presence of basal turtles in the Berezovsk Quarry Assemblage agrees with the fact that they are present in other Middle Jurassic turtle assemblages of Asia.


Annemys basal turtles paleohistology Middle Jurassic Siberia 


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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • I. G. Danilov
    • 1
    • 2
  • E. M. Obraztsova
    • 1
  • E. A. Boitsova
    • 1
  • P. P. Skutschas
    • 1
    • 3
  1. 1.St. Petersburg State UniversitySt. PetersburgRussia
  2. 2.Zoological Institute RussianAcademy of SciencesSt. PetersburgRussia
  3. 3.Tomsk State UniversityTomskRussia

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