The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)

The maxillary canal of the titanosuchid dinocephalian Jonkeria is described based on digitised serial sections. We highlight that its morphology is more like that of the tapinocephalid Moschognathus than that of Anteosaurus. This is unexpected given the similarities between the dentition of Jonkeria...

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Autores principales: Benoit, Julien, Norton, Luke A., Jirah, Sifelani
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2023
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10241669/
https://www.ncbi.nlm.nih.gov/pubmed/37272962
http://dx.doi.org/10.1007/s00114-023-01853-w
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author Benoit, Julien
Norton, Luke A.
Jirah, Sifelani
author_facet Benoit, Julien
Norton, Luke A.
Jirah, Sifelani
author_sort Benoit, Julien
collection PubMed
description The maxillary canal of the titanosuchid dinocephalian Jonkeria is described based on digitised serial sections. We highlight that its morphology is more like that of the tapinocephalid Moschognathus than that of Anteosaurus. This is unexpected given the similarities between the dentition of Jonkeria and Anteosaurus (i.e., presence of a canine) and the fact that the branching pattern of the maxillary canal in synapsids usually co-varies with dentition. Hypotheses to account for similarities between Jonkeria and Moschognathus (common ancestry, function in social signalling or underwater sensing) are discussed. It is likely that the maxillary canal carries a strong phylogenetic signal, here supporting the clade Tapinocephalia. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00114-023-01853-w.
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spelling pubmed-102416692023-06-07 The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia) Benoit, Julien Norton, Luke A. Jirah, Sifelani Naturwissenschaften Short Communication The maxillary canal of the titanosuchid dinocephalian Jonkeria is described based on digitised serial sections. We highlight that its morphology is more like that of the tapinocephalid Moschognathus than that of Anteosaurus. This is unexpected given the similarities between the dentition of Jonkeria and Anteosaurus (i.e., presence of a canine) and the fact that the branching pattern of the maxillary canal in synapsids usually co-varies with dentition. Hypotheses to account for similarities between Jonkeria and Moschognathus (common ancestry, function in social signalling or underwater sensing) are discussed. It is likely that the maxillary canal carries a strong phylogenetic signal, here supporting the clade Tapinocephalia. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00114-023-01853-w. Springer Berlin Heidelberg 2023-06-05 2023 /pmc/articles/PMC10241669/ /pubmed/37272962 http://dx.doi.org/10.1007/s00114-023-01853-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Short Communication
Benoit, Julien
Norton, Luke A.
Jirah, Sifelani
The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title_full The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title_fullStr The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title_full_unstemmed The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title_short The maxillary canal of the titanosuchid Jonkeria (Synapsida, Dinocephalia)
title_sort maxillary canal of the titanosuchid jonkeria (synapsida, dinocephalia)
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10241669/
https://www.ncbi.nlm.nih.gov/pubmed/37272962
http://dx.doi.org/10.1007/s00114-023-01853-w
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