Skip to main content

New Data on Dinosaurs in the Late Cretaceous Sediments of the Southern Urals


We describe a new find of a dinosaur in the Southern Urals, a fragment of long bone of a large dinosaur from the Upper Cretaceous (Upper Santonian–Lower Campanian) sediments exposed in a quarry in the vicinity of the village of Izhberda (Orenburg oblast). The bone is characterized by the following features of the histological structure: the presence of strongly vascularized primary fibrolamellar bone tissue with a lamellar type of vascularization and the absence of cyclic growth marks. These histological features indicate the rapid continuous growth of the animal. Such features have been encountered in advanced representatives of duck-billed dinosaurs (hadrosaurids) and advanced sauropods (eusauropods) that were large in size and had not undergone the “island effect.” The find from the Izhberda quarry is further evidence of the existence of large dinosaurs not subjected to the “island effect” on the supposed islands of the Late Cretaceous age in the Southern Urals or on the continental margin.

This is a preview of subscription content, access via your institution.

Fig. 1.


  1. E. V. Popov, V. A. Lopyrev, E. A. Mokrov, and A. V. Nikiforov, in Proc. 67th Sess. Paleontol. Soc., RAS: Theoretical and Applied Aspects of Paleontology (Kartfabrika Karpinsky Russ. Geol. Res. Inst., St. Petersburg, 2021), pp. 129–130 [in Russian].

  2. V. M. Efimov, I. A. Meleshin, and A. V. Nikiforov, Paleontol. J. 50 (5), 494–504 (2016).

    Article  Google Scholar 

  3. A. O. Averianov, N. G. Zverkov, and A. V. Nikiforov, Paleontol. J. 55 (6), 678–684 (2021).

    Article  Google Scholar 

  4. A. O. Averianov, N. G. Zverkov, and A. V. Nikiforov, Dokl. Earth Sci. 503 (2), 185–189 (2022).

    Article  Google Scholar 

  5. A. O. Averianov, N. G. Zverkov, and A. V. Nikiforov, Dokl. Earth Sci. 498 (2), 456–459 (2021).

    Article  Google Scholar 

  6. N. Klein and M. Sander, Paleobiology 34 (2), 247–263 (2008).

    Article  Google Scholar 

  7. J. Słowiak, T. Szczygielski, M. Ginter, et al., Palaeontology 63 (4), 579–599 (2020).

    Article  Google Scholar 

  8. A. G. J. Rhodin, Copeia 1985 (3), 752–771 (1985).

    Article  Google Scholar 

  9. A. Houssaye, J. Lindgren, R. Pellegrini, A. H. Lee, D. Germain, et al., PLoS One 8 (10), e76741 (2013).

    Article  Google Scholar 

  10. P. M. Sander and T. Wintrich, in Vertebrate Skeletal Histology and Paleohistology, Ed. by V. Buffrenil, L. Zylberberg, A. J. Ricqles, K. Padian, M. Laurin, and A. Quilhac (CRC Press, Boca Raton, 2021), pp. 444–457.

    Google Scholar 

  11. I. A. Cerda, A. Chinsamy, D. Pol, C. Apaldetti, A. Otero, J. E. Powell, et al., PLoS One 12 (6), e0179707 (2017).

    Article  Google Scholar 

  12. M. J. Benton, et al., Palaeogeogr., Palaeoclimatol., Palaeoecol. 293, 438–454 (2010).

    Article  Google Scholar 

  13. P. M. Sander, O. Mateus, T. Laven, and N. Knötsche, Nature 441 (7094), 739–741 (2006).

    Article  Google Scholar 

  14. E. Yu. Baraboshkin, A. S. Alekseev, and L. F. Kopaevich, Palaeogeogr., Palaeoclimatol., Palaeoecol. 196 (1), 177–208 (2003).

    Article  Google Scholar 

Download references


The authors are grateful to the staff of the Resource Center “X-ray Diffraction Methods of Research” (St. Petersburg State University) for help with the use of the Leica 2500P polarization microscope, to K.M. Lyubarov (LLC LIMS) for preparation of a thin section of the specimen OShMM no. 25, and to A.B. German (Geological Institute, Russian Academy of Sciences) for the review and valuable comments.


This work was supported by the Russian Science Foundation, project no. 19-14-00020-P. The work of N.G. Zverkov was supported by the Geological Institute, Russian Academy of Sciences.

Author information

Authors and Affiliations


Corresponding author

Correspondence to P. P. Skutschas.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by V. Krutikova

Rights and permissions

Reprints and Permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Skutschas, P.P., Bapinaev, R.A., Sichinava, E.A. et al. New Data on Dinosaurs in the Late Cretaceous Sediments of the Southern Urals. Dokl. Earth Sc. 505, 562–564 (2022).

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: