Interpreting the autopodia of tetrapods: interphalangeal lines hinge on too many assumptions

IVPP-IR > 中科院古脊椎所（2000年以后）

	Interpreting the autopodia of tetrapods: interphalangeal lines hinge on too many assumptions
	Hone, David W. E.1; Sullivan, Corwin 1; Bennett, S. Christopher 2,3; dwe_hone@yahoo.com
	2009
发表期刊	HISTORICAL BIOLOGY
ISSN	0891-2963
卷号	21 期号:1-2 页码:67-77
文章类型	Article
摘要	Recently Peters proposed the concept of 'interphalangeal lines', defined as sub-parallel lines that could supposedly be drawn across the joints of the digits of all tetrapods. The lines were viewed as potential axes of rotation, and it was suggested that they could be used to determine the resting position of the digits, reconstruct missing digital elements of fossil tetrapods, and provide information on systematic relationships. Evidence was adduced from the skeletons of recent and fossil vertebrates and from footprints. However, detailed analysis shows that these claims are largely unfounded. Linear alignments of joints on neighbouring digits are not consistently present in tetrapods, especially across locomotor cycles. Even if present, interphalangeal (IP) lines would rarely be in an appropriate orientation to facilitate joint movements during locomotion. There is no reason to believe that IP lines would be homologous across different taxa, so they cannot be used to infer systematic relationships. Finally, the alleged support from the ichnological record is undermined by the uncertain relationship between the joint structure of the skeleton and the form of the print. We conclude that IP lines cannot be consistently constructed on tetrapod extremities, and would have minimal functional relevance or predictive power in any case.
关键词	Pterosaurs Tetrapods Phalanges Hinge Lines Footprints Ichnology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	FOOT POSTURE ; LIMB POSTURE ; PTEROSAURS ; ADAPTATIONS ; DINOSAURS ; REPTILES ; MAMMALS ; ORIGIN
收录类别	SCI
语种	英语
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Paleontology
WOS类目	Biology ; Paleontology
WOS记录号	WOS:000284354000006
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/4777
专题	中科院古脊椎所（2000年以后）
通讯作者	dwe_hone@yahoo.com
作者单位	1.Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Ft Hays State Univ, Dept Biol Sci, Hays, KS 67601 USA 3.Sternberg Museum Nat Hist, Hays, KS 67601 USA
推荐引用方式 GB/T 7714	Hone, David W. E.,Sullivan, Corwin,Bennett, S. Christopher,et al. Interpreting the autopodia of tetrapods: interphalangeal lines hinge on too many assumptions[J]. HISTORICAL BIOLOGY,2009,21(1-2):67-77.
APA	Hone, David W. E.,Sullivan, Corwin,Bennett, S. Christopher,&dwe_hone@yahoo.com.(2009).Interpreting the autopodia of tetrapods: interphalangeal lines hinge on too many assumptions.HISTORICAL BIOLOGY,21(1-2),67-77.
MLA	Hone, David W. E.,et al."Interpreting the autopodia of tetrapods: interphalangeal lines hinge on too many assumptions".HISTORICAL BIOLOGY 21.1-2(2009):67-77.

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