Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China
A new ellimmichthyiform, Guiclupea superstes, gen. et sp. nov., from the Oligocene Ningming Formation of Ningming Basin, Guangxi Zhuang Autonomous Region, South China is described herein. With relatively large body size, parietals meeting at the midline, anterior ceratohyal with a beryciform foramen...
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PeerJ Inc.
2021-06-01
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| author | Gengjiao Chen Mee-mann Chang Feixiang Wu Xiaowen Liao |
| author_facet | Gengjiao Chen Mee-mann Chang Feixiang Wu Xiaowen Liao |
| author_sort | Gengjiao Chen |
| collection | DOAJ |
| description | A new ellimmichthyiform, Guiclupea superstes, gen. et sp. nov., from the Oligocene Ningming Formation of Ningming Basin, Guangxi Zhuang Autonomous Region, South China is described herein. With relatively large body size, parietals meeting at the midline, anterior ceratohyal with a beryciform foramen in the center, a complete predorsal scutes series of very high number and about equally-size scutes with radiating ridges on dorsal surface, first preural centrum unfused with first uroneural but fused with the parhypural, and first ural centrum of roughly the same size as the preural centrum, Guiclupea superstes cannot be assigned to the order Clupeiformes. The phylogenetic analyses using parsimony and Bayesian inference methods with Chanos/Elops as outgroup respectively suggests that the new form is closer to ellimmichthyiform genus Diplomystus than to any other fishes, although there are some discrepancies between the two criteria and different outgroups used. It shares with Diplomystus the high supraoccipital crest, pelvic-fin insertion in advance of dorsal fin origin, and the number of predorsal scutes more than 20. The new form represents the youngest ellimmichthyiform fish record in the world. Its discovery indicates that the members of the Ellimmichthyiformes had a wider distribution range and a longer evolutional history than previously known. |
| first_indexed | 2024-03-09T08:03:08Z |
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| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T08:03:08Z |
| publishDate | 2021-06-01 |
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| spelling | doaj.art-00ae63d1eb4a43e28608268fa563dab92023-12-03T00:31:15ZengPeerJ Inc.PeerJ2167-83592021-06-019e1141810.7717/peerj.11418Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South ChinaGengjiao Chen0Mee-mann Chang1Feixiang Wu2Xiaowen Liao3Natural History Museum of Guangxi Zhuang Autonomous Region, Nanning, ChinaKey Laboratory of Vertebrates, Evolution and Human Origins of Chinese Academy of Sciences IVPP, CAS, Beijing, ChinaKey Laboratory of Vertebrates, Evolution and Human Origins of Chinese Academy of Sciences IVPP, CAS, Beijing, ChinaNatural History Museum of Guangxi Zhuang Autonomous Region, Nanning, ChinaA new ellimmichthyiform, Guiclupea superstes, gen. et sp. nov., from the Oligocene Ningming Formation of Ningming Basin, Guangxi Zhuang Autonomous Region, South China is described herein. With relatively large body size, parietals meeting at the midline, anterior ceratohyal with a beryciform foramen in the center, a complete predorsal scutes series of very high number and about equally-size scutes with radiating ridges on dorsal surface, first preural centrum unfused with first uroneural but fused with the parhypural, and first ural centrum of roughly the same size as the preural centrum, Guiclupea superstes cannot be assigned to the order Clupeiformes. The phylogenetic analyses using parsimony and Bayesian inference methods with Chanos/Elops as outgroup respectively suggests that the new form is closer to ellimmichthyiform genus Diplomystus than to any other fishes, although there are some discrepancies between the two criteria and different outgroups used. It shares with Diplomystus the high supraoccipital crest, pelvic-fin insertion in advance of dorsal fin origin, and the number of predorsal scutes more than 20. The new form represents the youngest ellimmichthyiform fish record in the world. Its discovery indicates that the members of the Ellimmichthyiformes had a wider distribution range and a longer evolutional history than previously known.https://peerj.com/articles/11418.pdfEllimmichthyiformsOligoceneSouthern ChinaPhylogenyPaleobiology |
| spellingShingle | Gengjiao Chen Mee-mann Chang Feixiang Wu Xiaowen Liao Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China PeerJ Ellimmichthyiforms Oligocene Southern China Phylogeny Paleobiology |
| title | Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China |
| title_full | Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China |
| title_fullStr | Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China |
| title_full_unstemmed | Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China |
| title_short | Guiclupea superstes, gen. et sp. nov., the youngest ellimmichthyiform (clupeomorph) fish to date from the Oligocene of South China |
| title_sort | guiclupea superstes gen et sp nov the youngest ellimmichthyiform clupeomorph fish to date from the oligocene of south china |
| topic | Ellimmichthyiforms Oligocene Southern China Phylogeny Paleobiology |
| url | https://peerj.com/articles/11418.pdf |
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