A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture

doi:10.1111/pala.12451

IVPP-IR > 中科院古脊椎所（2000年以后）

	A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture
	Chapelle, Kimberley E. J.1,2; Benson, Roger B. J.1,3; Stiegler, Josef 4; Otero, Alejandro 5; Zhao, Qi 6,7,8; Choiniere, Jonah N.1
	2019-11-06
发表期刊	PALAEONTOLOGY
ISSN	0031-0239
页码	14
通讯作者	Chapelle, Kimberley E. J.(kimi.chapelle@gmail.com)
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.
关键词	ontogeny locomotion amniote dinosaur posture
DOI	10.1111/pala.12451
关键词[WOS]	LUMHOLTZS TREE-KANGAROO ; PHYLOGENETIC-RELATIONSHIPS ; QUADRUPEDALISM ; TERRESTRIAL ; XENARTHRA ; BIRDS ; LIMBS
收录类别	SCI
语种	英语
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000494578300001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/16963
专题	中科院古脊椎所（2000年以后）
通讯作者	Chapelle, Kimberley E. J.
作者单位	1.Univ Witwatersrand, Evolutionary Studies Inst, Johannesburg, South Africa 2.Univ Witwatersrand, Sch Geosci, Johannesburg, South Africa 3.Univ Oxford, Dept Earth Sci, Oxford, England 4.George Washington Univ, Washington, DC USA 5.Museo La Plata, La Plata, Buenos Aires, Argentina 6.Univ Bristol, Bristol, Avon, England 7.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 8.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
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.