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  Long bone cortices in a growth series of Apatosaurus sp. (Dinosauria: Diplodocidae): Geometry, body mass, and crystallite orientation of giant animals

Dumont, M., Borbély, A., Kaysser-Pyzalla, A. R., & Sander, P. M. (2014). Long bone cortices in a growth series of Apatosaurus sp. (Dinosauria: Diplodocidae): Geometry, body mass, and crystallite orientation of giant animals. Biological Journal of the Linnean Society, 112(4), 782-798. doi:10.1111/bij.12335.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-D419-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-D41A-3
Genre: Journal Article

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Dumont, Maitena1, Author              
Borbély, András2, Author              
Kaysser-Pyzalla, Anke Rita3, Author              
Sander, P. Martin4, Author              
Affiliations:
1Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              
2UMR 5146, École Nationale Supérieure des Mines de Saint-Étienne, 158, cours Fauriel, F-42023, Saint-Étienne, cedex 2, France, persistent22              
3Division of Paleontology, Steinmann Institute, University of Bonn, Nussallee 8, Bonn, 53115, Germany, persistent22              
4Helmholtz-Zentrum Berlin GmbH, Hahn-Meitner-Platz 1, Berlin, 14109, Germany, persistent22              

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 Abstract: Comparative studies of body mass, cortical bone geometry, and preferred crystallographic orientation (texture) of bone mineral in an ontogenetic series of the sauropod, Apatosaurus sp., and recent animals are reported. The cortical bone geometry shows that sauropods have an expansion of the cortical thickness as a result of their heavier mass. It is shown that a universal power-law relationship connects body mass to bone length, suggesting the validity of Wolff's law for sauropods. Moreover, sauropod and mammalian bones seem to be exposed to the same compressive bone stress. X-ray texture measurements of long bones were used to study the orientation of carbonated hydroxyapatite (HA) crystals. All bones investigated showed a 001-fibre texture, in which the c-axis of the HA crystals is oriented along the bone axis. Texture strength (defined by the alignment of HA crystals) appears to be of only minor importance regarding the mechanical strength and seems to be influenced by the loading mode of the bone. © 2014 The Linnean Society of London.

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Language(s): eng - English
 Dates: 2014-08
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1111/bij.12335
BibTex Citekey: Dumont2014782
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Title: Biological Journal of the Linnean Society
Source Genre: Journal
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Publ. Info: London : Wiley
Pages: - Volume / Issue: 112 (4) Sequence Number: - Start / End Page: 782 - 798 Identifier: ISSN: 0024-4066
CoNE: /journals/resource/954922646052