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Reconstruction of body cavity volume in terrestrial tetrapods

Clauss, M and Nurutdinova, I and Meloro, C and Gunga, HC and Jiang, D and Koller, J and Herkner, B and Sander, PM and Hellwich, O (2016) Reconstruction of body cavity volume in terrestrial tetrapods. Journal of Anatomy. ISSN 1469-7580

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Abstract

tracts required for the digestion of plant fiber, this concept has not been addressed quantitatively. We estimated the volume of the torso in 126 terrestrial tetrapods (synapsids including basal synapsids and mammals, and diapsids including birds, non-avian dinosaurs and reptiles) classified as either herbivore or carnivore in digital models of mounted skeletons, using the convex hull method. The difference in relative torso volume between diet types was significant in mammals, where relative torso volumes of herbivores were about twice as large as that of carnivores, supporting the general hypothesis. However, this effect was not evident in diapsids. This may either reflect the difficulty to reliably reconstruct mounted skeletons in non-avian dinosaurs, or a fundamental difference in the bauplan of different groups of tetrapods, for example due to differences in respiratory anatomy. Evidently, the condition in mammals should not be automatically assumed in other, including more basal, tetrapod lineages. In both synapsids and diapsids, large animals showed a high degree of divergence with respect to the proportion of their convex hull directly supported by bone, with animals like elephants or Triceratops having a low proportion, and animals such as rhinoceros having a high proportion of bony support. The relevance of this difference remains to be further investigated.

Item Type: Article
Additional Information: This is the peer reviewed version of the following article: Clauss, M., Nurutdinova, I., Meloro, C., Gunga, H.-C., Jiang, D., Koller, J., Herkner, B., Sander, P. M. and Hellwich, O. (2016), Reconstruction of body cavity volume in terrestrial tetrapods. J. Anat., which has been published in final form at http://dx.doi.org/10.1111/joa.12557. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
Uncontrolled Keywords: 0903 Biomedical Engineering, 1116 Medical Physiology
Subjects: Q Science > QH Natural history
Q Science > QH Natural history > QH301 Biology
Q Science > QL Zoology
Divisions: Natural Sciences and Psychology
Publisher: Wiley
Date Deposited: 21 Dec 2016 16:18
Last Modified: 10 Sep 2017 21:45
DOI or Identification number: 10.1111/joa.12557
URI: http://researchonline.ljmu.ac.uk/id/eprint/4861

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