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| one publication added to basket [283752] |
Osteological associations with unique tooth development in manatees (Trichechidae, Sirenia): a detailed look at modern Trichechus and a review of the fossil record
Beatty, B.L.; Vitkovski, T.; Lambert, O.; Macrini, T.E. (2012). Osteological associations with unique tooth development in manatees (Trichechidae, Sirenia): a detailed look at modern Trichechus and a review of the fossil record. Anat. Rec. 295(9): 1504-1512. http://dx.doi.org/10.1002/ar.22525
In: The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology. Wiley-Liss: Hoboken. ISSN 1932-8486; e-ISSN 1932-8494, meer
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| Trefwoorden |
Sirenia [WoRMS]; Trichechidae Gill, 1872 [WoRMS]; Trichechus Linnaeus, 1758 [WoRMS]
Marien/Kust |
| Author keywords |
Sirenia;Trichechidae;polyphyodonty;tooth development;Trichechus;Miosiren |
| Auteurs | | Top |
- Beatty, B.L.
- Vitkovski, T.
- Lambert, O., meer
- Macrini, T.E.
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| Abstract |
Modern manatees have a unique type of tooth development, continually forming identical new molars in the posterior end of each quadrant of their mouths, and then progressively moving teeth anteriorly, only to reabsorb roots and spit out worn crowns. This process is not only developmentally complex, but requires space in the oral cavity that imposes its own limitations on other uses of that space. To gain a clearer understanding of the anatomical constraints on the evolution of this unique developmental process, we identified the specialized craniodental features in modern Trichechus that permit this specialization using visual observation and CT. Furthermore, to better understand the evolution of these traits, we review the fossil record of trichechids for these traits, including CT analysis of the skull of Miosiren kocki, a possible early member of the family from the Early Miocene of Belgium. |
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