Grinham, Luke R. and Norman, David B. (2019) The pelvis as an anatomical indicator for facultative bipedality and substrate use in lepidosaurs. Biological Journal of the Linnean Society, 120. ISSN 0024-4066 DOI https://doi.org/10.1093/biolinnean/blz190
![]() |
Text
Grinham_BJLS_lepido_pelvis_Reviewed.pdf - Accepted Version Download (809kB) |
![]() |
Text
Grinham blz190_suppl_supplementary_material.docx - Supplemental Material Download (1MB) |
Abstract
Facultative bipedality is regarded as an enigmatic middle ground in the evolution of obligate bipedality and is associated with high mechanical demands in extant lepidosaurs. Traits linked with this phenomenon are largely associated with the caudal end of the animal: hindlimbs and tail. The articulation of the pelvis with both of these structures suggests a morphofunctional role in the use of a facultative locomotor mode. Using a three-dimensional geometric morphometric approach, we examine the pelvic osteology and associated functional implications for 34 species of extant lepidosaur. Anatomical trends associated with the use of a bipedal locomotor mode and substrate preferences are correlated and functionally interpreted based on musculoskeletal descriptions. Changes in pelvic osteology associated with a facultatively bipedal locomotor mode are similar to those observed in species preferring arboreal substrates, indicating shared functionality between these ecologies.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | 2019AREP; IA76 |
Subjects: | 04 - Palaeobiology |
Divisions: | 04 - Palaeobiology 08 - Green Open Access 12 - PhD |
Journal or Publication Title: | Biological Journal of the Linnean Society |
Volume: | 120 |
Identification Number: | https://doi.org/10.1093/biolinnean/blz190 |
Depositing User: | Sarah Humbert |
Date Deposited: | 24 Jan 2020 13:40 |
Last Modified: | 27 Dec 2020 01:00 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/4615 |
Actions (login required)
![]() |
View Item |