A basal ichthyosauriform with a short snout from the Lower Triassic of China

The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosaur...
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Autor*in:	Ryosuke Motani [verfasserIn] Da-Yong Jiang Guan-Bao Chen Andrea Tintori Olivier Rieppel Cheng Ji Jian-Dong Huang

Format:	Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology

Übergeordnetes Werk:	Enthalten in: Nature - London : Macmillan Publishers Limited, part of Springer Nature, 1869, 517(2015), 7535, Seite 485-488
Übergeordnetes Werk:	volume:517 ; year:2015 ; number:7535 ; pages:485-488

Links:	Volltext Link aufrufen Link aufrufen

DOI / URN:	10.1038/nature13866

Katalog-ID:	OLC196247691X

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allfields	10.1038/nature13866 doi PQ20160617 (DE-627)OLC196247691X (DE-599)GBVOLC196247691X (PRQ)c1994-6ee77aa8995a5647374e1d6d29bff11966488e5144da50c75160cf499adab87f0 (KEY)0072945020150000517753500485basalichthyosauriformwithashortsnoutfromthelowertr DE-627 ger DE-627 rakwb eng 070 500 DNB 500 AVZ BIODIV fid Ryosuke Motani verfasserin aut A basal ichthyosauriform with a short snout from the Lower Triassic of China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region. Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology Da-Yong Jiang oth Guan-Bao Chen oth Andrea Tintori oth Olivier Rieppel oth Cheng Ji oth Jian-Dong Huang oth Enthalten in Nature London : Macmillan Publishers Limited, part of Springer Nature, 1869 517(2015), 7535, Seite 485-488 (DE-627)129292834 (DE-600)120714-3 (DE-576)014473941 0028-0836 nnns volume:517 year:2015 number:7535 pages:485-488 http://dx.doi.org/10.1038/nature13866 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_154 GBV_ILN_160 GBV_ILN_168 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_267 GBV_ILN_290 GBV_ILN_294 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2002 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2095 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4320 GBV_ILN_4324 GBV_ILN_4700 AR 517 2015 7535 485-488
spelling	10.1038/nature13866 doi PQ20160617 (DE-627)OLC196247691X (DE-599)GBVOLC196247691X (PRQ)c1994-6ee77aa8995a5647374e1d6d29bff11966488e5144da50c75160cf499adab87f0 (KEY)0072945020150000517753500485basalichthyosauriformwithashortsnoutfromthelowertr DE-627 ger DE-627 rakwb eng 070 500 DNB 500 AVZ BIODIV fid Ryosuke Motani verfasserin aut A basal ichthyosauriform with a short snout from the Lower Triassic of China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region. Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology Da-Yong Jiang oth Guan-Bao Chen oth Andrea Tintori oth Olivier Rieppel oth Cheng Ji oth Jian-Dong Huang oth Enthalten in Nature London : Macmillan Publishers Limited, part of Springer Nature, 1869 517(2015), 7535, Seite 485-488 (DE-627)129292834 (DE-600)120714-3 (DE-576)014473941 0028-0836 nnns volume:517 year:2015 number:7535 pages:485-488 http://dx.doi.org/10.1038/nature13866 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_154 GBV_ILN_160 GBV_ILN_168 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_267 GBV_ILN_290 GBV_ILN_294 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2002 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2095 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4320 GBV_ILN_4324 GBV_ILN_4700 AR 517 2015 7535 485-488
allfields_unstemmed	10.1038/nature13866 doi PQ20160617 (DE-627)OLC196247691X (DE-599)GBVOLC196247691X (PRQ)c1994-6ee77aa8995a5647374e1d6d29bff11966488e5144da50c75160cf499adab87f0 (KEY)0072945020150000517753500485basalichthyosauriformwithashortsnoutfromthelowertr DE-627 ger DE-627 rakwb eng 070 500 DNB 500 AVZ BIODIV fid Ryosuke Motani verfasserin aut A basal ichthyosauriform with a short snout from the Lower Triassic of China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region. Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology Da-Yong Jiang oth Guan-Bao Chen oth Andrea Tintori oth Olivier Rieppel oth Cheng Ji oth Jian-Dong Huang oth Enthalten in Nature London : Macmillan Publishers Limited, part of Springer Nature, 1869 517(2015), 7535, Seite 485-488 (DE-627)129292834 (DE-600)120714-3 (DE-576)014473941 0028-0836 nnns volume:517 year:2015 number:7535 pages:485-488 http://dx.doi.org/10.1038/nature13866 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_154 GBV_ILN_160 GBV_ILN_168 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_267 GBV_ILN_290 GBV_ILN_294 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2002 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2095 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4320 GBV_ILN_4324 GBV_ILN_4700 AR 517 2015 7535 485-488
allfieldsGer	10.1038/nature13866 doi PQ20160617 (DE-627)OLC196247691X (DE-599)GBVOLC196247691X (PRQ)c1994-6ee77aa8995a5647374e1d6d29bff11966488e5144da50c75160cf499adab87f0 (KEY)0072945020150000517753500485basalichthyosauriformwithashortsnoutfromthelowertr DE-627 ger DE-627 rakwb eng 070 500 DNB 500 AVZ BIODIV fid Ryosuke Motani verfasserin aut A basal ichthyosauriform with a short snout from the Lower Triassic of China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region. Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology Da-Yong Jiang oth Guan-Bao Chen oth Andrea Tintori oth Olivier Rieppel oth Cheng Ji oth Jian-Dong Huang oth Enthalten in Nature London : Macmillan Publishers Limited, part of Springer Nature, 1869 517(2015), 7535, Seite 485-488 (DE-627)129292834 (DE-600)120714-3 (DE-576)014473941 0028-0836 nnns volume:517 year:2015 number:7535 pages:485-488 http://dx.doi.org/10.1038/nature13866 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_154 GBV_ILN_160 GBV_ILN_168 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_267 GBV_ILN_290 GBV_ILN_294 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2002 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2095 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4320 GBV_ILN_4324 GBV_ILN_4700 AR 517 2015 7535 485-488
allfieldsSound	10.1038/nature13866 doi PQ20160617 (DE-627)OLC196247691X (DE-599)GBVOLC196247691X (PRQ)c1994-6ee77aa8995a5647374e1d6d29bff11966488e5144da50c75160cf499adab87f0 (KEY)0072945020150000517753500485basalichthyosauriformwithashortsnoutfromthelowertr DE-627 ger DE-627 rakwb eng 070 500 DNB 500 AVZ BIODIV fid Ryosuke Motani verfasserin aut A basal ichthyosauriform with a short snout from the Lower Triassic of China 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region. Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology Da-Yong Jiang oth Guan-Bao Chen oth Andrea Tintori oth Olivier Rieppel oth Cheng Ji oth Jian-Dong Huang oth Enthalten in Nature London : Macmillan Publishers Limited, part of Springer Nature, 1869 517(2015), 7535, Seite 485-488 (DE-627)129292834 (DE-600)120714-3 (DE-576)014473941 0028-0836 nnns volume:517 year:2015 number:7535 pages:485-488 http://dx.doi.org/10.1038/nature13866 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_154 GBV_ILN_160 GBV_ILN_168 GBV_ILN_170 GBV_ILN_171 GBV_ILN_211 GBV_ILN_267 GBV_ILN_290 GBV_ILN_294 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2002 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2015 GBV_ILN_2016 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2095 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4046 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4320 GBV_ILN_4324 GBV_ILN_4700 AR 517 2015 7535 485-488
language	English
source	Enthalten in Nature 517(2015), 7535, Seite 485-488 volume:517 year:2015 number:7535 pages:485-488
sourceStr	Enthalten in Nature 517(2015), 7535, Seite 485-488 volume:517 year:2015 number:7535 pages:485-488
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology
dewey-raw	070
isfreeaccess_bool	false
container_title	Nature
authorswithroles_txt_mv	Ryosuke Motani @@aut@@ Da-Yong Jiang @@oth@@ Guan-Bao Chen @@oth@@ Andrea Tintori @@oth@@ Olivier Rieppel @@oth@@ Cheng Ji @@oth@@ Jian-Dong Huang @@oth@@
publishDateDaySort_date	2015-01-01T00:00:00Z
hierarchy_top_id	129292834
dewey-sort	270
id	OLC196247691X
language_de	englisch
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author	Ryosuke Motani
spellingShingle	Ryosuke Motani ddc 070 ddc 500 fid BIODIV misc Taxonomy misc Paleontology misc Reptiles & amphibians misc Vertebra misc Fossils misc China misc Skull - anatomy & histology misc Reptiles - anatomy & histology misc Reptiles - classification misc Animal Structures - anatomy & histology A basal ichthyosauriform with a short snout from the Lower Triassic of China
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topic_title	070 500 DNB 500 AVZ BIODIV fid A basal ichthyosauriform with a short snout from the Lower Triassic of China Taxonomy Paleontology Reptiles & amphibians Vertebra Fossils China Skull - anatomy & histology Reptiles - anatomy & histology Reptiles - classification Animal Structures - anatomy & histology
topic	ddc 070 ddc 500 fid BIODIV misc Taxonomy misc Paleontology misc Reptiles & amphibians misc Vertebra misc Fossils misc China misc Skull - anatomy & histology misc Reptiles - anatomy & histology misc Reptiles - classification misc Animal Structures - anatomy & histology
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title	A basal ichthyosauriform with a short snout from the Lower Triassic of China
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title_full	A basal ichthyosauriform with a short snout from the Lower Triassic of China
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title_sort	basal ichthyosauriform with a short snout from the lower triassic of china
title_auth	A basal ichthyosauriform with a short snout from the Lower Triassic of China
abstract	The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region.
abstractGer	The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region.
abstract_unstemmed	The incompleteness of the fossil record obscures the origin of many of the more derived clades of vertebrates. One such group is the Ichthyopterygia, a clade of obligatory marine reptiles that appeared in the Early Triassic epoch, without any known intermediates. Here we describe a basal ichthyosauriform from the upper Lower Triassic (about 248 million years ago) of China, whose primitive skeleton indicates possible amphibious habits. It is smaller than ichthyopterygians and had unusually large flippers that probably allowed limited terrestrial locomotion. It also retained characteristics of terrestrial diapsid reptiles, including a short snout and body trunk. Unlike more-derived ichthyosauriforms, it was probably a suction feeder. The new species supports the sister-group relationships between ichthyosauriforms and Hupehsuchia, the two forming the Ichthyosauromorpha. Basal ichthyosauromorphs are known exclusively from south China, suggesting that the clade originated in the region, which formed a warm and humid tropical archipelago in the Early Triassic.The oldest unequivocal record of a sauropterygian is also from the same stratigraphic unit of the region.
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container_issue	7535
title_short	A basal ichthyosauriform with a short snout from the Lower Triassic of China
url	http://dx.doi.org/10.1038/nature13866 http://www.ncbi.nlm.nih.gov/pubmed/25383536 http://search.proquest.com/docview/1650544597
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score	7.401045

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A basal ichthyosauriform with a short snout from the Lower Triassic of China

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Vorhandene Bände

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