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A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation
Pachypleurosaurs (Pachypleurosauroidea) are a group of small to medium-sized, lizard-like marine reptiles in the Early to Middle Triassic, including Pachypleurosauridae, Keichousauridae and closely related taxa. The group is generally considered as a sauropterygian radiation, but its phylogenetic in...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072359/ https://www.ncbi.nlm.nih.gov/pubmed/35513463 http://dx.doi.org/10.1038/s41598-022-11309-2 |
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author | Xu, Guang-Hui Ren, Yi Zhao, Li-Jun Liao, Jun-Ling Feng, Dong-Hao |
author_facet | Xu, Guang-Hui Ren, Yi Zhao, Li-Jun Liao, Jun-Ling Feng, Dong-Hao |
author_sort | Xu, Guang-Hui |
collection | PubMed |
description | Pachypleurosaurs (Pachypleurosauroidea) are a group of small to medium-sized, lizard-like marine reptiles in the Early to Middle Triassic, including Pachypleurosauridae, Keichousauridae and closely related taxa. The group is generally considered as a sauropterygian radiation, but its phylogenetic interrelationships remain highly debated. Here, we present a new pachypleurosaurid, Honghesaurus longicaudalis gen. et sp. nov., from the early Middle Triassic (Anisian, ~ 244 Ma) marine deposits in Luxi, Yunnan, China. The discovery documents the first really long-tailed pachypleurosaur with totally 121 (69 caudal) vertebrae, providing new evidence for the vertebral multiplication and ecological adaption of this group. The long trunk associated with an incredibly long tail could provide Honghesaurus the advantage of maneuverability and energy efficiency for lateral undulatory swimming. Honghesaurus, although possessing a series of autapomorphies, fills the morphological gap between Qianxisaurus from the Ladinian Xingyi Biota and Wumengosaurus from the Anisian Panxian Biota. Phylogenetic studies unite these three pachypleurosaurids as a monophyletic clade above European pachypleurosaurid clades and provide new insights into the interrelationships of this group. Our scenario of pachypleurosaurian phylogeny combined with the stratigraphic data imply that the Tethys Ocean was a west–east corridor for dispersal of pachypleurosaurids from Europe into South China. |
format | Online Article Text |
id | pubmed-9072359 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90723592022-05-07 A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation Xu, Guang-Hui Ren, Yi Zhao, Li-Jun Liao, Jun-Ling Feng, Dong-Hao Sci Rep Article Pachypleurosaurs (Pachypleurosauroidea) are a group of small to medium-sized, lizard-like marine reptiles in the Early to Middle Triassic, including Pachypleurosauridae, Keichousauridae and closely related taxa. The group is generally considered as a sauropterygian radiation, but its phylogenetic interrelationships remain highly debated. Here, we present a new pachypleurosaurid, Honghesaurus longicaudalis gen. et sp. nov., from the early Middle Triassic (Anisian, ~ 244 Ma) marine deposits in Luxi, Yunnan, China. The discovery documents the first really long-tailed pachypleurosaur with totally 121 (69 caudal) vertebrae, providing new evidence for the vertebral multiplication and ecological adaption of this group. The long trunk associated with an incredibly long tail could provide Honghesaurus the advantage of maneuverability and energy efficiency for lateral undulatory swimming. Honghesaurus, although possessing a series of autapomorphies, fills the morphological gap between Qianxisaurus from the Ladinian Xingyi Biota and Wumengosaurus from the Anisian Panxian Biota. Phylogenetic studies unite these three pachypleurosaurids as a monophyletic clade above European pachypleurosaurid clades and provide new insights into the interrelationships of this group. Our scenario of pachypleurosaurian phylogeny combined with the stratigraphic data imply that the Tethys Ocean was a west–east corridor for dispersal of pachypleurosaurids from Europe into South China. Nature Publishing Group UK 2022-05-05 /pmc/articles/PMC9072359/ /pubmed/35513463 http://dx.doi.org/10.1038/s41598-022-11309-2 Text en © The Author(s) 2022 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 | Article Xu, Guang-Hui Ren, Yi Zhao, Li-Jun Liao, Jun-Ling Feng, Dong-Hao A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title | A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title_full | A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title_fullStr | A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title_full_unstemmed | A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title_short | A long-tailed marine reptile from China provides new insights into the Middle Triassic pachypleurosaur radiation |
title_sort | long-tailed marine reptile from china provides new insights into the middle triassic pachypleurosaur radiation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072359/ https://www.ncbi.nlm.nih.gov/pubmed/35513463 http://dx.doi.org/10.1038/s41598-022-11309-2 |
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