Anomalies of the vertebral and pleural scutes in the Middle Jurassic turtle Annemys variabilis (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia)
DOI:
https://doi.org/10.21638/spbu03.2023.403Abstract
The anomalies of the vertebral and pleural scutes in the Middle Jurassic turtle Annemys variabilis (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia) have been studied based of more than 1000 isolated neural plates. Symmetric and asymmetric abnormal scute patterns have been found. Comparison of the anomalies as well as their frequencies in Annemys variabilis and extant turtles demonstrates similar abnormal scute patterns. It is assumed that the high level of the scute variation of Annemys variabilis is caused by the instability of the developmental mechanisms, which are common for all turtles.
Keywords:
Testudines, Xinjiangchelyidae, Annemys variabilis, Middle Jurassic, Krasnoyarsk Territory, scute abnormalities
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References
Ascarrunz, E. and Sánchez-Villagra, M. R. 2022. The macroevolutionary and developmental evolution of the turtle carapacial scutes. Vertebrate Zoology 72:29–46. https://doi.org/10.3897/vz.72.e76256
Ayres Fernández, C. and Cordero Rivera, A. 2004. Asymmetries and accessory scutes in Emys orbicularis from Northwest Spain. Biologia, Bratislava 59/Suppl. 14:85–88.
Bishop, C. A., Ng, P., Pettit, K., Kennedy, S., Stegeman, J., Norstrom, R., and Brooks, R. 1998. Environmental contamination and developmental abnormalities in eggs and hatchlings of the common snapping turtle (Chelydra serpentina serpentina) from the Great Lakes–St Lawrence River basin (1989–1991). Environmental Pollution 101(1):143–156. https://doi.org/10.1016/S0269-7491(98)00005-0
Brown, L. J. and Davy, C. M. 2021. Evaluation of spot patterns and carapace abnormalities of an Endangered freshwater turtle, Clemmys guttata, as a potential tool for population assignment. Endangered Species Research 45:159–167. https://doi.org/10.3354/esr01120
Bujes, C. S. and Verrastro, L. 2007. Supernumerary epidermal shields and carapace variation in Orbigny’s slider turtles, Trachemys dorbigni (Testudines, Emydidae). Revista Brasileira de Zoologia 24(3):1–10. https://doi.org/10.1590/S0101-81752007000300018
Cherepanov, G. O. 1997. The origin of the bony shell of turtles as a unique evolutionary model in reptiles. Russian Journal of Herpetology 4(2):155–162. https://doi.org/10.30906/1026-2296-1997-4-2-155-162
Cherepanov, G. O. 2005. The turtle shell: Morphogenesis and evolution. 184 pp. St. Petersburg University Press, Saint Petersburg. (In Russian)
Cherepanov, G. O. 2014. Patterns of scute development in turtle shell: symmetry and asymmetry. Paleontological Journal 48:1275–1283. https://doi.org/10.1134/S0031030114120028
Cherepanov, G., Malashichev, Y., and Danilov, I. 2019. Supernumerary scutes verify a segment-dependent model of the horny shell development in turtles. Journal of Anatomy 235:836–846. https://doi.org/10.1111/joa.13022
Coker, R. Е. 1910. Diversity in the scutes of Chelonia. Journal of Morphology 21:1–75. https://doi.org/10.1002/jmor.1050210102
Cordero, G. A., Birk, K., Ruane, S., Dinkelacker, S. A., and Janzen, F. J. 2022. Effects of the egg incubation environment on turtle carapace development. Evolution and Development 1–17. https://doi.org/10.1111/ede.12425
Cordero-Rivera, A., Ayres, F. C., and Velo-Antón, G. 2008. High prevalence of accessory scutes and anomalies in Iberian populations of Emys orbicularis. Revista Española de Herpetología 22:5–14.
Davy, C. M. and Murphy R. W. 2009. Explaining patterns of deformity in freshwater turtles using MacCulloch’s hypothesis. Canadian Journal of Zoology 87:433–439.
Ewert, M. A. 1979. The embryo and its egg: Development and natural history; pp. 333–413 in M. Harless and H. Morlock (eds.). Turtles: Perspectives and Research. John Wiley & Sons, New York.
Guerrero, A. and Pérez-García, A. 2021. Shell Anomalies in the European Aquatic Stem Turtle Pleurosternon bullockii (Paracryptodira, Pleurosternidae). Diversity 13(11):518. https://doi.org/10.3390/d13110518
Joyce, W. G. 2003. A new Late Jurassic turtle specimen and the taxonomy of Palaeomedusa testa and Eurysternum wagleri. PaleoBios 23:1–8.
Joyce, W. G., Petričević, A., Lyson, T. R., and Czaplewski, N. J. 2012. A new box turtle from the Miocene/Pliocene Boundary (Latest Hemphillian) of Oklahoma and a refined chronology of box turtle diversification. Journal of Paleontology 86(1):177–190. https://doi.org/10.1666/11-073.1
Loehr, V. J. T. 2016. Wide variation in carapacial scute patterns in a natural population of speckled tortoises, Homopus signatus. African Journal of Herpetology 65(1):47–54. https://doi.org/10.1080/21564574.2016.1146168
Lynn, W. G. and Ullrich, M. C. 1950. Experimental production of shell abnormalities in turtles. Copeia 1950(4):253–262. https://doi.org/10.2307/1437903
Mast, R. B. and Carr, J. L. 1989. Carapacial scute variation in Kemp’s ridley sea turtle (Lepidochelys kempi) hatchlings and juveniles; pp. 202–219 in C. W. Caillouet, J. Landry and A. M. Landry (eds.). Proceedings of the First International Symposium on Kemp’s Ridley Sea Turtle Biology, Conservation and Management. Texas A and M University Sea Grant.
McKnight, D. T. and Ligon, D. B. 2014. Shell and pattern abnormalities in a population of western chicken turtles (Deirochelys reticularia miaria). Herpetology Notes 7:89–91.
Moustakas-Verho, J. E. and Cherepanov, G. O. 2015. The integumental appendages of the turtle shell: an evo-devo perspective. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 324:221–229. https://doi.org/10.1002/jez.b.22619
Moustakas-Verho, J. E., Zimm, R., Cebra-Thomas, J., Lempiäinen, N. K., Kallonen, A., Mitchell, K. L., Hämäläinen, K., Salazar-Ciudad, I., Jernvall, J., and Gilbert, S. F. 2014. The origin and loss of periodic patterning in the turtle shell. Development 141(15):3033–3039. https://doi.org/10.1242/dev.109041
Newman, H. H. 1906. The significance of scute and plate “abnormalities” in Chelonia. Biological Bulletin 10:68–114. https://doi.org/10.2307/1535668
Obraztsova, E. M., Krasnolutskii, S. A., Sukhanov, V. B., and Danilov, I. G. 2022. Xinjiangchelyid turtles from the Middle Jurassic of the Berezovsk coal mine (Krasnoyarsk Territory, Russia): Systematics, skeletal morphology, variation, relationships and palaeobiogeographic implications. Journal of Systematic Palaeontology 20(1):2093662. https://doi.org/10.1080/14772019.2022.2093662
Obraztsova, E. M., Shvets, S. D., and Danilov, I. G. 2020. Variation of the neural series in fossil turtles of the genus Annemys (Xinjiangchelyidae); pp. 263–265 in T. N. Bogdanova, E. V. Bugrova, V. Ya. Vuks, V. A. Gavrilova, I. O. Evdokimova, A. O. Ivanov, O. L. Kossovaya, G. V. Kotlyar, M. V. Oshurkova, E. V. Popov, E. G. Raevskaya, T. V. Sapelko, A. A. Suyarkova, A. S. Tesakov, V. V. Titov and T. Yu. Tolmacheva (eds.). Biogeography and evolutionary processes, materials of the 64th session of the Paleontological Society. Paleontological Society, Saint Petersburg. (In Russian)
Parker, G. H. 1901. Correlated abnormalities in the scutes any bony plates of the carapace of the sculptured tortoise. The American Naturalist 35:17–24. https://doi.org/10.1086/277843
Pritchard, P. C. H. 2007. Evolution and structure of the turtle shell; pp. 45–84 in J. Wyneken, M. H. Godfrey, V. Bels (eds.). Biology of turtles. CRC Press. Boca Raton, London, New York.
Püntener, C., Billon-Bruyat, J.-P., Bocat, L., Berger, J.-P., and Joyce, W. G. 2014. Taxonomy and phylogeny of the turtle Tropidemys langii Rütimeyer, 1873, based on new specimens from the Kimmeridgian of the Swiss Jura Mountains. Journal of Vertebrate Paleontology 34(2):353–374. https://doi.org/10.1080/02724634.2013.804412
Sim, E. L., Booth, D. T., and Limpus, C. J. 2014. Non‐modal scute patterns, morphology, and locomotor performance of loggerhead (Caretta caretta) and flatback (Natator depressus) turtle hatchlings. Copeia 2014(1):63–69. https://doi.org/10.1643/cp-13-041
Szczygielski, T., Slowiak, J., and Dróżdż, D. 2018. Shell variability in the stem turtles. Proterochersis spp. PeerJ 6:e6134. https://doi.org/10.7717/peerj.6134
Telemeco, R. S., Warner, D. A., Reida, M. K., and Janzen, F. J. 2013. Extreme developmental temperatures result in morphological abnormalities in painted turtles (Chrysemys picta): A climate change perspective. Integrative Zoology 8(2):197–208. https://doi.org/10.1111/1749-4877.12019
Vlachos, E. 2020. The turtles from ‘Gilmore’s slab’: evolution and diversity of the extinct turtle Echmatemys (Testudines: Testudinoidea: Geoemydidae) from the central United States. Journal of Systematic Palaeontology 18(14):1193–1216. https://doi.org/10.1080/14772019.2020.1754938
Zangerl, R. 1969. The turtle shell; pp. 311–339 in C. Gans, A. Bellairs and T. S. Parsons (eds.). Biology of the reptilia. Vol. 1. Academic Press, London and New York.
Zangerl, R. and Johnson, R. G. 1957. The nature of shield abnormalities in the turtle shell. Fieldiana, Geology 10(29):341–362.
Zimm, R., Bentley, B. P., Wyneken, J., and Moustakas-Verho, J. E. 2017. Environmental causation of turtle scute anomalies in ovo and in silico. Integrative and Comparative Biology 57(6):1303–1311. https://doi.org/10.1093/icb/icx066
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Published
2023-12-31
How to Cite
Cherepanov, G., Obraztsova, E., Shvets, S., & Danilov, I. (2023). Anomalies of the vertebral and pleural scutes in the Middle Jurassic turtle <em>Annemys variabilis</em> (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia). Biological Communications, 68(4), 227–235. https://doi.org/10.21638/spbu03.2023.403
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Articles of Biological Communications are open access distributed under the terms of the License Agreement with Saint Petersburg State University, which permits to the authors unrestricted distribution and self-archiving free of charge.
