Abstract
Most taphonomy studies of South American sauropodomorphs have addressed extrinsic factors such as sedimentary environments, bone dispersal, and mineralogical processes that occurred during fossil diagenesis. These studies provide important data on the taphonomic modes which are associated with bone accumulations in different paleoenvironmental contexts. However, these analyses have generally not considered intrinsic factors like the shape, size, and structural integrity of the skeletal elements, variables that can produce some taphonomic bias. Sauropodomorphs include dinosaurs of highly varied sizes, ranging from small (less than 8 m long) to remarkably giant forms (around 30 m long). In the largest sauropods, such as the huge titanosaurs, very incomplete skeletons are commonly found and most notably skull and articulated pedes rarely are preserved. We focus here on some intrinsic anatomical factors as they relate to articulation in some key parts of the skeletons. Further, this study suggests that the preservation of fragile portions of sauropodomorph skeletons was possible only under specific combinations of sedimentological and biological processes.
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Acknowledgements
We are grateful to the editors A. Otero, J. L. Carballido and D. Pol, for inviting us to participate in this book. The following institutions and projects supported our researches: authorities and colleagues of the Universidad Nacional de Cuyo and Facultad de Ciencias Exactas y Naturales (Mendoza, Argentina), and Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), and projects of Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina PIP0695 (to B.J. González Riga), Universidad Nacional de Cuyo (Mendoza, Argentina) SIIP-UNCUYO 725 2019-06/M112 (to B.J. González Riga), SIIP-UNCUYO 2019-M085 (to L.D. Ortiz David, and SIIP-UNCUYO 2019-M069 (to J.P. Coria), Universidad Nacional de la Patagonia San Juan Bosco Ciunpat PI 1089; PI 1249, and PI 1409 (to G. Casal), and ANCYT PICT 201-0459 (to L. Ibiricu and G. Casal). J. L. Carballido. J. O. Calvo, P. Gallina and M. Luna gently provided photographs.
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González Riga, B.J., Casal, G.A., Fiorillo, A.R., Ortiz David, L.D. (2022). Taphonomy: Overview and New Perspectives Related to the Paleobiology of Giants. In: Otero, A., Carballido, J.L., Pol, D. (eds) South American Sauropodomorph Dinosaurs. Springer Earth System Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-95959-3_15
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