Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia)
- Author
- Attila Ősi, Edina Prondvai (UGent) , Jordan Mallon and Emese Réka Bodor
- Organization
- Abstract
- Ankylosaurian dinosaurs were low-browsing quadrupeds that were traditionally thought of as simple orthal pulpers exhibiting minimal tooth occlusion during feeding, as in many extant lizards. Recent studies, however, have demonstrated that effective chewing with tooth occlusion and palinal jaw movement was present in some members of this group. Qualitative and quantitative analysis of feeding characters (i.e. craniodental features, tooth wear patterns, origin and insertion of jaw adductors) reveal at least three different jaw mechanisms during the evolution of Ankylosauria. Whereas, in basal members, food processing was restricted to simple orthal pulping, in late Early and Late Cretaceous North American and European forms a precise tooth occlusion evolved convergently in many lineages (including nodosaurids and ankylosaurids) complemented by palinal power stroke. In contrast, Asian forms retained the primitive mode of feeding without any biphasal chewing, a phenomenon that might relate to the different types of vegetation consumed by these low-level feeders in different habitats on different landmasses. Further, a progressive widening of the muzzle is demonstrated both in Late Cretaceous North American and Asian ankylosaurs, and the width and general shape of the muzzle probably correlates with foraging time and food type, as in herbivorous mammals.
- Keywords
- Ankylosauria, feeding characters, tooth wear, dental occlusion, palinal jaw movement, herbivory, JUDITH RIVER FORMATION, NODOSAURID ANKYLOSAUR, PROVINCIAL-PARK, DENTAL FUNCTION, JAW MECHANISM, CRETACEOUS ANKYLOSAUR, HATEG BASINS, WEAR FACETS, TOOTH WEAR, ALBERTA
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8548608
- MLA
- Ősi, Attila, et al. “Diversity and Convergences in the Evolution of Feeding Adaptations in Ankylosaurs (Dinosauria: Ornithischia).” HISTORICAL BIOLOGY, vol. 29, no. 4, 2017, pp. 539–70, doi:10.1080/08912963.2016.1208194.
- APA
- Ősi, A., Prondvai, E., Mallon, J., & Bodor, E. R. (2017). Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia). HISTORICAL BIOLOGY, 29(4), 539–570. https://doi.org/10.1080/08912963.2016.1208194
- Chicago author-date
- Ősi, Attila, Edina Prondvai, Jordan Mallon, and Emese Réka Bodor. 2017. “Diversity and Convergences in the Evolution of Feeding Adaptations in Ankylosaurs (Dinosauria: Ornithischia).” HISTORICAL BIOLOGY 29 (4): 539–70. https://doi.org/10.1080/08912963.2016.1208194.
- Chicago author-date (all authors)
- Ősi, Attila, Edina Prondvai, Jordan Mallon, and Emese Réka Bodor. 2017. “Diversity and Convergences in the Evolution of Feeding Adaptations in Ankylosaurs (Dinosauria: Ornithischia).” HISTORICAL BIOLOGY 29 (4): 539–570. doi:10.1080/08912963.2016.1208194.
- Vancouver
- 1.Ősi A, Prondvai E, Mallon J, Bodor ER. Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia). HISTORICAL BIOLOGY. 2017;29(4):539–70.
- IEEE
- [1]A. Ősi, E. Prondvai, J. Mallon, and E. R. Bodor, “Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia),” HISTORICAL BIOLOGY, vol. 29, no. 4, pp. 539–570, 2017.
@article{8548608,
abstract = {{Ankylosaurian dinosaurs were low-browsing quadrupeds that were traditionally thought of as simple orthal pulpers exhibiting minimal tooth occlusion during feeding, as in many extant lizards. Recent studies, however, have demonstrated that effective chewing with tooth occlusion and palinal jaw movement was present in some members of this group. Qualitative and quantitative analysis of feeding characters (i.e. craniodental features, tooth wear patterns, origin and insertion of jaw adductors) reveal at least three different jaw mechanisms during the evolution of Ankylosauria. Whereas, in basal members, food processing was restricted to simple orthal pulping, in late Early and Late Cretaceous North American and European forms a precise tooth occlusion evolved convergently in many lineages (including nodosaurids and ankylosaurids) complemented by palinal power stroke. In contrast, Asian forms retained the primitive mode of feeding without any biphasal chewing, a phenomenon that might relate to the different types of vegetation consumed by these low-level feeders in different habitats on different landmasses. Further, a progressive widening of the muzzle is demonstrated both in Late Cretaceous North American and Asian ankylosaurs, and the width and general shape of the muzzle probably correlates with foraging time and food type, as in herbivorous mammals.}},
author = {{Ősi, Attila and Prondvai, Edina and Mallon, Jordan and Bodor, Emese Réka}},
issn = {{0891-2963}},
journal = {{HISTORICAL BIOLOGY}},
keywords = {{Ankylosauria,feeding characters,tooth wear,dental occlusion,palinal jaw movement,herbivory,JUDITH RIVER FORMATION,NODOSAURID ANKYLOSAUR,PROVINCIAL-PARK,DENTAL FUNCTION,JAW MECHANISM,CRETACEOUS ANKYLOSAUR,HATEG BASINS,WEAR FACETS,TOOTH WEAR,ALBERTA}},
language = {{eng}},
number = {{4}},
pages = {{539--570}},
title = {{Diversity and convergences in the evolution of feeding adaptations in ankylosaurs (Dinosauria: Ornithischia)}},
url = {{http://doi.org/10.1080/08912963.2016.1208194}},
volume = {{29}},
year = {{2017}},
}
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