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Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France
Rhabdodontidae is a successful clade of ornithopod dinosaurs, characteristic of Late Cretaceous continental faunas in Europe. A new rhabdodontid from the late Campanian, of southern France, Matheronodon provincialis gen. et sp. nov., is characterized by the extreme enlargement of both its maxillary...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658417/ https://www.ncbi.nlm.nih.gov/pubmed/29074952 http://dx.doi.org/10.1038/s41598-017-13160-2 |
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author | Godefroit, Pascal Garcia, Géraldine Gomez, Bernard Stein, Koen Cincotta, Aude Lefèvre, Ulysse Valentin, Xavier |
author_facet | Godefroit, Pascal Garcia, Géraldine Gomez, Bernard Stein, Koen Cincotta, Aude Lefèvre, Ulysse Valentin, Xavier |
author_sort | Godefroit, Pascal |
collection | PubMed |
description | Rhabdodontidae is a successful clade of ornithopod dinosaurs, characteristic of Late Cretaceous continental faunas in Europe. A new rhabdodontid from the late Campanian, of southern France, Matheronodon provincialis gen. et sp. nov., is characterized by the extreme enlargement of both its maxillary and dentary teeth, correlated to a drastic reduction in the number of maxillary teeth (4 per generation in MMS/VBN-02-102). The interalveolar septa on the maxilla are alternately present or resorbed ventrally so as to be able to lodge such enlarged teeth. The rhabdodontid dentition and masticatory apparatus were adapted for producing a strict and powerful shearing action, resembling a pair of scissors. With their relatively simple dentition, contrasting with the sophisticated dental batteries in contemporary hadrosaurids, Matheronodon and other rhabdodontids are tentatively interpreted as specialized consumers of tough plant parts rich in sclerenchyma fibers, such as Sabalites and Pandanites. |
format | Online Article Text |
id | pubmed-5658417 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56584172017-10-31 Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France Godefroit, Pascal Garcia, Géraldine Gomez, Bernard Stein, Koen Cincotta, Aude Lefèvre, Ulysse Valentin, Xavier Sci Rep Article Rhabdodontidae is a successful clade of ornithopod dinosaurs, characteristic of Late Cretaceous continental faunas in Europe. A new rhabdodontid from the late Campanian, of southern France, Matheronodon provincialis gen. et sp. nov., is characterized by the extreme enlargement of both its maxillary and dentary teeth, correlated to a drastic reduction in the number of maxillary teeth (4 per generation in MMS/VBN-02-102). The interalveolar septa on the maxilla are alternately present or resorbed ventrally so as to be able to lodge such enlarged teeth. The rhabdodontid dentition and masticatory apparatus were adapted for producing a strict and powerful shearing action, resembling a pair of scissors. With their relatively simple dentition, contrasting with the sophisticated dental batteries in contemporary hadrosaurids, Matheronodon and other rhabdodontids are tentatively interpreted as specialized consumers of tough plant parts rich in sclerenchyma fibers, such as Sabalites and Pandanites. Nature Publishing Group UK 2017-10-26 /pmc/articles/PMC5658417/ /pubmed/29074952 http://dx.doi.org/10.1038/s41598-017-13160-2 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Godefroit, Pascal Garcia, Géraldine Gomez, Bernard Stein, Koen Cincotta, Aude Lefèvre, Ulysse Valentin, Xavier Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title | Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title_full | Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title_fullStr | Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title_full_unstemmed | Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title_short | Extreme tooth enlargement in a new Late Cretaceous rhabdodontid dinosaur from Southern France |
title_sort | extreme tooth enlargement in a new late cretaceous rhabdodontid dinosaur from southern france |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658417/ https://www.ncbi.nlm.nih.gov/pubmed/29074952 http://dx.doi.org/10.1038/s41598-017-13160-2 |
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