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Cutting the first ‘teeth': a new approach to functional analysis of conodont elements.
- Source :
- Proceedings of the Royal Society B: Biological Sciences; 10/7/2013, Vol. 280 Issue 1768, p1-1, 1p
- Publication Year :
- 2013
-
Abstract
- The morphological disparity of conodont elements rivals the dentition of all other vertebrates, yet relatively little is known about their functional diversity. Nevertheless, conodonts are an invaluable resource for testing the generality of functional principles derived from vertebrate teeth, and for exploring convergence in a range of food-processing structures. In a few derived conodont taxa, occlusal patterns have been used to derive functional models. However, conodont elements commonly and primitively exhibit comparatively simple coniform morphologies, functional analysis of which has not progressed much beyond speculation based on analogy. We have generated high-resolution tomographic data for each morphotype of the coniform conodont Panderodus acostatus. Using virtual cross sections, it has been possible to characterize changes in physical properties associated with individual element morphology. Subtle changes in cross-sectional profile have profound implications for the functional performance of individual elements and the apparatus as a whole. This study has implications beyond the ecology of a single conodont taxon. It provides a basis for reinterpreting coniform conodont taxonomy (which is based heavily on cross-sectional profiles), in terms of functional performance and ecology, shedding new light on the conodont fossil record. This technique can also be applied to more derived conodont morphologies, as well as analogous dentitions in other vertebrates and invertebrates. [ABSTRACT FROM AUTHOR]
- Subjects :
- CONODONTS
FUNCTIONAL analysis
MORPHOLOGY
VERTEBRATE anatomy
TEETH
Subjects
Details
- Language :
- English
- ISSN :
- 09628452
- Volume :
- 280
- Issue :
- 1768
- Database :
- Complementary Index
- Journal :
- Proceedings of the Royal Society B: Biological Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 103149394
- Full Text :
- https://doi.org/10.1098/rspb.2013.1524