A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture
文献类型：期刊论文
| 作者 | Chapelle, Kimberley E. J.6,8; Benson, Roger B. J.7,8; Stiegler, Josef1; Otero, Alejandro2; Zhao, Qi3,4,5; Choiniere, Jonah N.8 |
| 刊名 | PALAEONTOLOGY
 |
| 出版日期 | 2019-11-06 |
| 页码 | 14 |
| 关键词 | ontogeny locomotion amniote dinosaur posture |
| ISSN号 | 0031-0239 |
| DOI | 10.1111/pala.12451 |
| 通讯作者 | Chapelle, Kimberley E. J.(kimi.chapelle@gmail.com) |
| 英文摘要 | Evolutionary transitions between quadrupedal and bipedal postures are pivotal to the diversification of amniotes on land, including in our own lineage (Hominini). Heterochrony is suggested as a macroevolutionary mechanism for postural transitions but understanding postural evolution in deep time is hindered by a lack of methods for inferring posture in extinct species. Dinosaurs are an excellent natural laboratory for understanding postural transitions because they demonstrate at least four instances of quadrupedality evolving from bipedality, and heterochronic processes have been put forward as an explanatory model for these transitions. We extend a quantitative method for reliably inferring posture in tetrapods to the study of ontogenetic postural transitions using measurements of proportional limb robusticity. We apply this to ontogenetic series of living and extinct amniotes, focusing on dinosaurs. Our method correctly predicts the general pattern of ontogenetic conservation of quadrupedal and bipedal postures in many living amniote species and infers the same pattern in some dinosaurs. Furthermore, it correctly predicts the ontogenetic postural shift from quadrupedal crawling to bipedal walking in humans. We also infer a transition from early ontogenetic quadrupedality to late-ontogenetic bipedality in the transitional sauropodomorph dinosaur Mussaurus patagonicus and possibly in the early branching ceratopsian Psittacosaurus lujiatunensis but not in the sauropodomorph Massospondylus carinatus. The phylogenetic positions of these ontogenetic shifts suggest that heterochrony may play a role in the macroevolution of posture, at least in dinosaurs. Our method has substantial potential for testing evolutionary transitions between locomotor modes, especially in elucidating the role of evolutionary mechanisms like heterochrony. |
| WOS关键词 | LUMHOLTZS TREE-KANGAROO ; PHYLOGENETIC-RELATIONSHIPS ; QUADRUPEDALISM ; TERRESTRIAL ; XENARTHRA ; BIRDS ; LIMBS |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000494578300001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.205/handle/311034/16962]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | Chapelle, Kimberley E. J. |
| 作者单位 | 1.George Washington Univ, Washington, DC USA 2.Museo La Plata, La Plata, Buenos Aires, Argentina 3.Univ Bristol, Bristol, Avon, England 4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 6.Univ Witwatersrand, Sch Geosci, Johannesburg, South Africa 7.Univ Oxford, Dept Earth Sci, Oxford, England 8.Univ Witwatersrand, Evolutionary Studies Inst, Johannesburg, South Africa |
| 推荐引用方式 GB/T 7714 | Chapelle, Kimberley E. J.,Benson, Roger B. J.,Stiegler, Josef,et al. A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture[J]. PALAEONTOLOGY,2019:14. |
| APA | Chapelle, Kimberley E. J.,Benson, Roger B. J.,Stiegler, Josef,Otero, Alejandro,Zhao, Qi,&Choiniere, Jonah N..(2019).A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture.PALAEONTOLOGY,14. |
| MLA | Chapelle, Kimberley E. J.,et al."A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture".PALAEONTOLOGY (2019):14. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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