Multi-Joint Analysis of Pose Viability Supports the Possibility of Salamander-Like Hindlimb Configurations in the Permian Tetrapod Eryops megacephalus.
| Autor: | Herbst EC; Palaeontological Institute and Museum, University of Zurich, Karl-Schmid-Strasse 4, CH-8006 Zurich, Switzerland.; Structure and Motion Lab, Department of Comparative Biomedical Sciences, The Royal Veterinary College, Hawkshead Lane, Hertfordshire AL9 7TA, UK., Manafzadeh AR; Department of Ecology, Evolution, and Organismal Biology, Brown University, 80 Waterman Street, Providence, RI 02912, USA., Hutchinson JR; Structure and Motion Lab, Department of Comparative Biomedical Sciences, The Royal Veterinary College, Hawkshead Lane, Hertfordshire AL9 7TA, UK. |
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| Jazyk: | angličtina |
| Zdroj: | Integrative and comparative biology [Integr Comp Biol] 2022 Aug 25; Vol. 62 (2), pp. 139-151. |
| DOI: | 10.1093/icb/icac083 |
| Abstrakt: | Salamanders are often used as analogs for early tetrapods in paleontological reconstructions of locomotion. However, concerns have been raised about whether this comparison is justifiable, necessitating comparisons of a broader range of early tetrapods with salamanders. Here, we test whether the osteological morphology of the hindlimb in the early tetrapod (temnospondyl amphibian) Eryops megacephalus could have facilitated the sequence of limb configurations used by salamanders during terrestrial locomotion. To do so, we present a new method that enables the examination of full limb configurations rather than isolated joint poses. Based on this analysis, we conclude that E. megacephalus may indeed have been capable of salamander-like hindlimb kinematics. Our method facilitates the holistic visual comparison of limb configurations between taxa without reliance on the homology of coordinate system definitions, and can thus be applied to facilitate various comparisons between extinct and extant taxa, spanning the diversity of locomotion both past and present. (© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Integrative and Comparative Biology.) |
| Databáze: | MEDLINE |
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