Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic
Lepisosteoids are known for their evolutionary conservatism, and their body plan can be traced at least as far back as the Early Cretaceous, by which point two families had diverged: Lepisosteidae, known since the Late Cretaceous and including all living species and various fossils from all continen...
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ftpubmed:oai:pubmedcentral.nih.gov:5736718 2023-05-15T13:41:05+02:00 Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic Brito, Paulo M. Alvarado-Ortega, Jésus Meunier, François J. 2017-12-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5736718/ http://www.ncbi.nlm.nih.gov/pubmed/29259200 https://doi.org/10.1038/s41598-017-17984-w en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5736718/ http://www.ncbi.nlm.nih.gov/pubmed/29259200 http://dx.doi.org/10.1038/s41598-017-17984-w © 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/. CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/s41598-017-17984-w 2017-12-24T01:24:49Z Lepisosteoids are known for their evolutionary conservatism, and their body plan can be traced at least as far back as the Early Cretaceous, by which point two families had diverged: Lepisosteidae, known since the Late Cretaceous and including all living species and various fossils from all continents, except Antarctica and Australia, and Obaichthyidae, restricted to the Cretaceous of northeastern Brazil and Morocco. Until now, the oldest known lepisosteoids were the obaichthyids, which show general neopterygian features lost or transformed in lepisosteids. Here we describe the earliest known lepisosteoid (Nhanulepisosteus mexicanus gen. and sp. nov.) from the Upper Jurassic (Kimmeridgian – about 157 Myr), of the Tlaxiaco Basin, Mexico. The new taxon is based on disarticulated cranial pieces, preserved three-dimensionally, as well as on scales. Nhanulepisosteus is recovered as the sister taxon of the rest of the Lepisosteidae. This extends the chronological range of lepisosteoids by about 46 Myr and of the lepisosteids by about 57 Myr, and fills a major morphological gap in current understanding the early diversification of this group. Text Antarc* Antarctica PubMed Central (PMC) Scientific Reports 7 1 |
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Article Brito, Paulo M. Alvarado-Ortega, Jésus Meunier, François J. Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
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Lepisosteoids are known for their evolutionary conservatism, and their body plan can be traced at least as far back as the Early Cretaceous, by which point two families had diverged: Lepisosteidae, known since the Late Cretaceous and including all living species and various fossils from all continents, except Antarctica and Australia, and Obaichthyidae, restricted to the Cretaceous of northeastern Brazil and Morocco. Until now, the oldest known lepisosteoids were the obaichthyids, which show general neopterygian features lost or transformed in lepisosteids. Here we describe the earliest known lepisosteoid (Nhanulepisosteus mexicanus gen. and sp. nov.) from the Upper Jurassic (Kimmeridgian – about 157 Myr), of the Tlaxiaco Basin, Mexico. The new taxon is based on disarticulated cranial pieces, preserved three-dimensionally, as well as on scales. Nhanulepisosteus is recovered as the sister taxon of the rest of the Lepisosteidae. This extends the chronological range of lepisosteoids by about 46 Myr and of the lepisosteids by about 57 Myr, and fills a major morphological gap in current understanding the early diversification of this group. |
format |
Text |
author |
Brito, Paulo M. Alvarado-Ortega, Jésus Meunier, François J. |
author_facet |
Brito, Paulo M. Alvarado-Ortega, Jésus Meunier, François J. |
author_sort |
Brito, Paulo M. |
title |
Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
title_short |
Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
title_full |
Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
title_fullStr |
Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
title_full_unstemmed |
Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic |
title_sort |
earliest known lepisosteoid extends the range of anatomically modern gars to the late jurassic |
publisher |
Nature Publishing Group UK |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5736718/ http://www.ncbi.nlm.nih.gov/pubmed/29259200 https://doi.org/10.1038/s41598-017-17984-w |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5736718/ http://www.ncbi.nlm.nih.gov/pubmed/29259200 http://dx.doi.org/10.1038/s41598-017-17984-w |
op_rights |
© 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/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-017-17984-w |
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Scientific Reports |
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