Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time
The cartilaginous fishes (Chondrichthyes) have a rich fossil record which consists mostly of isolated teeth and, therefore, phylogenetic relationships of extinct taxa are mainly resolved based on dental characters. One character, the tooth histology, has been examined since the 19(th) century, but i...
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ftpubmed:oai:pubmedcentral.nih.gov:6609643 2023-05-15T15:53:51+02:00 Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time Jambura, Patrick L. Kindlimann, René López-Romero, Faviel Marramà, Giuseppe Pfaff, Cathrin Stumpf, Sebastian Türtscher, Julia Underwood, Charlie J. Ward, David J. Kriwet, Jürgen 2019-07-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609643/ http://www.ncbi.nlm.nih.gov/pubmed/31273249 https://doi.org/10.1038/s41598-019-46081-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609643/ http://www.ncbi.nlm.nih.gov/pubmed/31273249 http://dx.doi.org/10.1038/s41598-019-46081-3 © The Author(s) 2019 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/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-46081-3 2019-07-21T00:18:49Z The cartilaginous fishes (Chondrichthyes) have a rich fossil record which consists mostly of isolated teeth and, therefore, phylogenetic relationships of extinct taxa are mainly resolved based on dental characters. One character, the tooth histology, has been examined since the 19(th) century, but its implications on the phylogeny of Chondrichthyes is still in debate. We used high resolution micro-CT images and tooth sections of 11 recent and seven extinct lamniform sharks to examine the tooth mineralization processes in this group. Our data showed similarities between lamniform sharks and other taxa (a dentinal core of osteodentine instead of a hollow pulp cavity), but also one feature that has not been known from any other elasmobranch fish: the absence of orthodentine. Our results suggest that this character resembles a synapomorphic condition for lamniform sharks, with the basking shark, Cetorhinus maximus, representing the only exception and reverted to the plesiomorphic tooth histotype. Additionally, †Palaeocarcharias stromeri, whose affiliation still is debated, shares the same tooth histology only known from lamniform sharks. This suggests that †Palaeocarcharias stromeri is member of the order Lamniformes, contradicting recent interpretations and thus, dating the origin of this group back at least into the Middle Jurassic. Text Cetorhinus maximus PubMed Central (PMC) Scientific Reports 9 1 |
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Article Jambura, Patrick L. Kindlimann, René López-Romero, Faviel Marramà, Giuseppe Pfaff, Cathrin Stumpf, Sebastian Türtscher, Julia Underwood, Charlie J. Ward, David J. Kriwet, Jürgen Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
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Article |
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The cartilaginous fishes (Chondrichthyes) have a rich fossil record which consists mostly of isolated teeth and, therefore, phylogenetic relationships of extinct taxa are mainly resolved based on dental characters. One character, the tooth histology, has been examined since the 19(th) century, but its implications on the phylogeny of Chondrichthyes is still in debate. We used high resolution micro-CT images and tooth sections of 11 recent and seven extinct lamniform sharks to examine the tooth mineralization processes in this group. Our data showed similarities between lamniform sharks and other taxa (a dentinal core of osteodentine instead of a hollow pulp cavity), but also one feature that has not been known from any other elasmobranch fish: the absence of orthodentine. Our results suggest that this character resembles a synapomorphic condition for lamniform sharks, with the basking shark, Cetorhinus maximus, representing the only exception and reverted to the plesiomorphic tooth histotype. Additionally, †Palaeocarcharias stromeri, whose affiliation still is debated, shares the same tooth histology only known from lamniform sharks. This suggests that †Palaeocarcharias stromeri is member of the order Lamniformes, contradicting recent interpretations and thus, dating the origin of this group back at least into the Middle Jurassic. |
format |
Text |
author |
Jambura, Patrick L. Kindlimann, René López-Romero, Faviel Marramà, Giuseppe Pfaff, Cathrin Stumpf, Sebastian Türtscher, Julia Underwood, Charlie J. Ward, David J. Kriwet, Jürgen |
author_facet |
Jambura, Patrick L. Kindlimann, René López-Romero, Faviel Marramà, Giuseppe Pfaff, Cathrin Stumpf, Sebastian Türtscher, Julia Underwood, Charlie J. Ward, David J. Kriwet, Jürgen |
author_sort |
Jambura, Patrick L. |
title |
Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
title_short |
Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
title_full |
Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
title_fullStr |
Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
title_full_unstemmed |
Micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (Chondrichthyes; Lamniformes) in deep time |
title_sort |
micro-computed tomography imaging reveals the development of a unique tooth mineralization pattern in mackerel sharks (chondrichthyes; lamniformes) in deep time |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609643/ http://www.ncbi.nlm.nih.gov/pubmed/31273249 https://doi.org/10.1038/s41598-019-46081-3 |
genre |
Cetorhinus maximus |
genre_facet |
Cetorhinus maximus |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609643/ http://www.ncbi.nlm.nih.gov/pubmed/31273249 http://dx.doi.org/10.1038/s41598-019-46081-3 |
op_rights |
© The Author(s) 2019 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/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-46081-3 |
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Scientific Reports |
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9 |
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1 |
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