A new non-parasemionotiform order of the Halecomorphi (Neopterygii, Actinopterygii) from the Middle Triassic of Tethys | |
Sun Zuoyu ; Tintori, Andrea ; Xu Yaozhong ; Lombardo, Cristina ; Ni Peigang ; Jiang Dayong | |
刊名 | JOURNAL OF SYSTEMATIC PALAEONTOLOGY |
2017 | |
关键词 | Panxianichthys imparilis Panxianichthyiformes Halecomorphi Middle Triassic Tethys SOUTH CHINA FISH HALECOMORPHI GUIZHOU PROVINCE MARINE REPTILE CANTON TICINO SP NOV. SWITZERLAND GENUS SEMIONOTIFORMES YUNNAN |
DOI | 10.1080/14772019.2016.1181679 |
英文摘要 | The halecomorph fish Panxianichthys imparilis, from the Pelsonian (Anisian, Middle Triassic) of Panxian County, Guizhou Province, South China, was recently described in brief. Here we present a thorough revision of this taxon based on 22 specimens, which allows a much better understanding of its anatomy and, consequently, its phylogenetic relationships. Newly recognized anatomical features include a flat quadratojugal, a symplectic articulating with the lower jaw ventral to the quadrate articulation, five infraorbitals, up to three suborbitals, and a large tail body lobe. Panxianichthys represents the oldest known non-parasemionotiform halecomorph and has a crescent-shaped preopercle and a maxillary branch of infraorbital sensory canal, but it is excluded from the Ionoscopiformes-Amiiformes' clade mainly by the presence of a quadratojugal, a dermosphenotic hinged to the side of the skull roof with a smooth innerorbital flange bearing no sensory canal, and a symplectic articulation much more ventral than that of the quadrate. A comparison with other Triassic non-parasemionotiform halecomorphs, together with the phylogenetic analysis, supports the erection of a new halecomorph order, Panxianichthyiformes, which is the sister group to the post-Triassic Ionoscopiformes-Amiiformes' clade. In addition, Robustichthys, also from the Anisian and previously ascribed to Ionoscopiformes, is recognized here as a new stem-group Ginglymodi.http://zoobank.org/urn:lsid:zoobank.org:pub:5594E962-985F-466D-AC52-2E9A5AC07787; Peking University; NSFC [40920124002, 41372016, 41572008]; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) [123107, 123102, 143108]; Beijing Municipal Science and Technology Commission [Z141110000814107]; Beijing University Museum Union; MIUR-PRIN; SCI(E); ARTICLE; 3; 223-240; 15 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/476255] |
专题 | 地球与空间科学学院 |
推荐引用方式 GB/T 7714 | Sun Zuoyu,Tintori, Andrea,Xu Yaozhong,et al. A new non-parasemionotiform order of the Halecomorphi (Neopterygii, Actinopterygii) from the Middle Triassic of Tethys[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2017. |
APA | Sun Zuoyu,Tintori, Andrea,Xu Yaozhong,Lombardo, Cristina,Ni Peigang,&Jiang Dayong.(2017).A new non-parasemionotiform order of the Halecomorphi (Neopterygii, Actinopterygii) from the Middle Triassic of Tethys.JOURNAL OF SYSTEMATIC PALAEONTOLOGY. |
MLA | Sun Zuoyu,et al."A new non-parasemionotiform order of the Halecomorphi (Neopterygii, Actinopterygii) from the Middle Triassic of Tethys".JOURNAL OF SYSTEMATIC PALAEONTOLOGY (2017). |
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