Ontogeny and miniaturization of Alvarezsauridae (Dinosauria, Theropoda)
DOI:
https://doi.org/10.21638/spbu03.2023.201Abstract
The ontogenetic status of the known specimens of alvarezsaurid theropod dinosaurs is revised. We present histological data that the holotype of Parvicursor remotus from the Upper Cretaceous Barungoyot Formation of Mongolia is not an adult individual, as previously thought, but a juvenile less than one year old. The miniaturization took place only in the Late Cretaceous Asiatic Parvicursorinae, whereas the Late Cretaceous South American non-parvicursorine alvarezsaurids were large animals. The miniaturization occurred by shifting ossification to earlier ontogenetic stages, in particular, by the closure of the neurocentral sutures on the presacral vertebrae of juvenile animals. There is no morphological support for the myrmecophagy in the alvarezsaurids and a shift to a myrmecophagous ecological niche does not explain the need for miniaturization.
Keywords:
Dinosauria, Theropoda, Alvarezsauridae, ontogeny, miniaturization
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References
Agnolin, F. L., Powell, J. E., Novas, F. E., and Kundrát, M. 2012. New alvarezsaurid (Dinosauria, Theropoda) from uppermost Cretaceous of north-western Patagonia with associated eggs. Cretaceous Research 35:33–56. https://doi.org/10.1016/j.cretres.2011.11.014
Alifanov, V. R. and Barsbold, R. 2009. Ceratonykus oculatus gen. et sp. nov., a new dinosaur (?Theropoda, Alvarezsauria) from the Late Cretaceous of Mongolia. Paleontological Journal 43(1):86–99. https://doi.org/10.1134/S0031030109010109
Averianov, A. O. and Lopatin, A. V. 2021. A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs. Journal of Systematic Palaeontology 19(16):1097–1128. https://doi.org/10.1080/14772019.2021.2013965
Averianov, A. O. and Lopatin, A. V. 2022. A new alvarezsaurid theropod dinosaur from the Upper Cretaceous of Gobi Desert, Mongolia. Cretaceous Research 135:105168. https://doi.org/10.1016/j.cretres.2022.105168
Benson, R. B. J., Hunt, G., Carrano, M. T., and Campione, N. E. 2018. Cope’s rule and the adaptive landscape of dinosaur body size evolution. Palaeontology 61(1):13–48. https://doi.org/10.1111/pala.12329
Brusatte, S. L., Lloyd, G. T., Wang, S. C., and Norell, M. A. 2014. Gradual assembly of avian body plan culminated in rapid rates of evolution across the dinosaur-bird transition. Current Biology 24(20):2386–2392. https://doi.org/10.1016/j.cub.2014.08.034
Carrano, M. T. 2006. Body-size evolution in the Dinosauria; 225–268 in M. T. Carrano, T. J. Gaudin, R. W. Blob, J. R. Wible (eds), Amniote Paleobiology: Perspectives on the Evolution of Mammals, Birds, and Reptiles. University of Chicago Press. Chicago.
Chiappe, L. M., Norell, M. A., and Clark, J. M. 2002. The Cretaceous, short-armed Alvarezsauridae: Mononykus and its kin; pp. 87–120 in L. M. Chiappe, L. M. Witmer (eds), Mesozoic Birds: Above the Heads of Dinosaurs. University of California Press. Berkeley.
Chinsamy, A. and Raath, M. A. 1992. Preparation of fossil bone for histological examination. Palaeontologia Africana 29:39–44.
Choiniere, J. N., Xu, X., Clark, J. M., Forster, C. A., Guo, Y., and Han, F. 2010. A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China. Science 327(5965):571–574. https://doi.org/10.1126/science.1182143
Choiniere, J. N., Clark, J. M., Forster, C. A., Norell, M. A., Eberth, D. A., Erickson, G. M., Chu, H., and Xu, X. 2014. A juvenile specimen of a new coelurosaur (Dinosauria: Theropoda) from the Middle–Late Jurassic Shishugou Formation of Xinjiang, People’s Republic of China. Journal of Systematic Palaeontology 12(2):177–215. https://doi.org/10.1080/14772019.2013.781067
Christiansen, P. and Fariña, R. A. 2004. Mass prediction in theropod dinosaurs. Historical Biology 16(2–4):85–92. https://doi.org/10.1080/08912960412331284313
Erickson, G. M., Rauhut, O. W. M., Zhou, Z., Turner, A. H., Inouye, B. D., Hu, D.-Y., and Norell, M. A. 2009. Was dinosaurian physiology inherited by birds? Reconciling slow growth in Archaeopteryx. PLoS One 4:e7390. https://doi.org/10.1371/journal.pone.0007390
Francillon-Vieillot, H., de Buffrénil, V., Castanet, J., Géraudie, J., Meunier, F. J., Sire, J.-Y., Zylberberg, L., and de Ricqlès, A. 1990. Microstructure and mineralization of vertebrate skeletal tissues; pp. 471–548 in J. G. Carter (ed.), Skeletal biomineralization: patterns, processes and evolutionary trends. Volume 5. Springer Science. New York.
Hanken, J. and Wake, D. B. 1993. Miniaturization of body size: organismal consequences and evolutionary significance. Annual Review of Ecology and Systematics 24:501–519. https://doi.org/10.1146/annurev.es.24.110193.002441
Hone, D. W. E. and Benton, M. J. 2005. The evolution of large size: how does Cope’s Rule work? Trends in Ecology and Evolution 20(1):4–6. https://doi.org/10.1016/j.tree.2004.10.012
Hone, D. W. E., Keesey, T. M., Pisani, D., and Purvis, A. 2005. Macroevolutionary trends in the Dinosauria: Cope’s rule. Journal of Evolutionary Biology 18(3):587–595. https://doi.org/10.1111/j.1420-9101.2004.00870.x
Karhu, A. A. and Rautian, A. S. 1996. A new family of Maniraptora (Dinosauria: Saurischia) from the Late Cretaceous of Mongolia. Paleontological Journal 30(5):583–592.
Lee, M. S. Y., Cau, A., Naish, D., and Dyke, G. J. 2014. Sustained miniaturization and anatomical innovation in the dinosaurian ancestors of birds. Science 345(6196):562–566. https://doi.org/10.1126/science.1252243
Lee, S., Park, J.-Y., Lee, Y.-N., Kim, S.-H., Lü, J., Barsbold, R., and Tsogtbaatar, K. 2019. A new alvarezsaurid dinosaur from the Nemegt Formation of Mongolia. Scientific Reports 9:15493. https://doi.org/10.1038/s41598-019-52021-y
Longrich, N. R. and Currie, P. J. 2009. Albertonykus borealis, a new alvarezsaur (Dinosauria: Theropoda) from the early Maastrichtian of Alberta, Canada: implications for the systematics and ecology of the Alvarezsauridae. Cretaceous Research 30(1):239–252. https://doi.org/10.1016/j.cretres.2008.07.005
Lü, J., Xu, L., Chang, H., Jia, S., Zhang, J., Gao, D., Zhang, Y., Zhang, C., and Ding, F. 2018. A new alvarezsaurid dinosaur from the Late Cretaceous Qiupa Formation of Luanchuan, Henan Province, central China. China Geology 1:28–35. https://doi.org/10.31035/cg2018005
Makovicky, P. J., Apesteguía, S., and Gianechini, F. A. 2012. A new coelurosaurian theropod from the La Buitrera fossil locality of Río Negro, Argentina. Fieldiana Life and Earth Sciences 5:90–98. https://doi.org/10.3158/2158-5520-5.1.90
Nesbitt, S. J., Clarke, J. A., Turner, A. H., and Norell, M. A. 2011. A small alvarezsaurid from the eastern Gobi Desert offers insight into evolutionary patterns in the Alvarezsauroidea. Journal of Vertebrate Paleontology 31(1):144–153. https://doi.org/10.1080/02724634.2011.540053
Novas, F. E. 1997. Anatomy of Patagonykus puertai (Theropoda, Avialae, Alvarezsauridae), from the Late Cretaceous of Patagonia. Journal of Vertebrate Paleontology 17(1):137–166. https://doi.org/10.1080/02724634.1997.10010959
Perle, A., Chiappe, L. M., Barsbold, R., Clark, J. M., and Norell, M. A. 1994. Skeletal morphology of Mononykus olecranus (Theropoda: Avialae) from the Late Cretaceous of Mongolia. American Museum Novitates 3105:1–29.
Puttick, M. N., Thomas, G. H., and Benton, M. J. 2014. High rates of evolution preceded the origin of birds. Evolution 68(5):1497–1510. https://doi.org/10.1111/evo.12363
Qin, Z.-C., Zhao, Q., and Xu, X. 2019. Metatarsal II osteohistology of Xixianykus zhangi (Theropoda: Alvarezsauria) and its implications for the development of the arctometatarsalian pes. Vertebrata PalAsiatica 57(3):205–213.
Qin, Z., Clark, J. M., Choiniere, J. N., and Xu, X. 2019. A new alvarezsaurian theropod from the Upper Jurassic Shishugou Formation of western China. Scientific Reports 9:11727. https://doi.org/10.1038/s41598-019-48148-7
Qin, Z., Zhao, Q., Choiniere, J. N., Clark, J. M., Benton, M. J., and Xu, X. 2021. Growth and miniaturization among alvarezsauroid dinosaurs. Current Biology 31:1–7. https://doi.org/10.1016/j.cub.2021.06.013
Senter, P. 2005. Function in the stunted forelimbs of Mononykus olecranus (Theropoda), a dinosaurian anteater. Paleobiology 31(3):373–381. https://doi.org/10.1666/0094-8373(2005)031[0373:FITSFO]2.0.CO;2
Xu, X., Wang, D.-Y., Sullivan, C., Hone, D. W. E., Han, F., Yan, R.-H., and Du, F.-M. 2010. A basal parvicursorine (Theropoda: Alvarezsauridae) from the Upper Cretaceous of China. Zootaxa 2413:1–19. https://doi.org/10.11646/zootaxa.2413.1.1
Xu, X., Upchurch, P., Ma, Q., Pittman, M., Choiniere, J. N., Sullivan, C., Hone, D. W. E., Tan, Q., Tan, L., Xiao, D., and Han, F. 2013. Osteology of the Late Cretaceous alvarezsauroid Linhenykus monodactylus from China and comments on alvarezsauroid biogeography. Acta Palaeontologica Polonica 58(1):25–46. https://doi.org/10.4202/app.2011.0083
Xu, X., Choiniere, J. N., Tan, Q., Benson, R. B. J., Clark, J. M., Sullivan, C., Zhao, Q., Han, F., Ma, Q., He, Y., Wang, S., Xing, H., and Tan, L. 2018. Two Early Cretaceous fossils document transitional stages in alvarezsaurian dinosaur evolution. Current Biology 28:1–8. https://doi.org/10.1016/j.cub.2018.07.057
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Published
2023-06-27
How to Cite
Averianov, A., Skutschas, P., & Lopatin, A. (2023). Ontogeny and miniaturization of Alvarezsauridae (Dinosauria, Theropoda). Biological Communications, 68(2), 65–73. https://doi.org/10.21638/spbu03.2023.201
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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.
