Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus
文献类型：期刊论文
| 作者 | Maxwell, Erin E.1,2; Romano, Carlo2; Wu, Feixiang3 ; Furrer, Heinz2
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| 刊名 | ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
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| 出版日期 | 2015-04-01 |
| 卷号 | 173期号:4页码:887-912 |
| 关键词 | Actinopterygii Besano Formation Ladinian Monte San Giorgio Palaeobiogeography Phylogeny Saurichthyidae Triassic |
| 文献子类 | Article |
| 英文摘要 | Saurichthys, characterized by a long slender body and an elongated rostrum, is one of the most iconic genera of Late Paleozoic-Early Mesozoic fishes. The genus was particularly speciose in the Triassic, with a global distribution in both marine and freshwater habitats. Here, we describe two new species from the Middle Triassic Besano Formation of Monte San Giorgio, Switzerland, Saurichthys breviabdominalis sp. nov. and Saurichthys rieppeli sp. nov. S.breviabdominalis is characterized by a proportionately long operculum, short abdominal region and rib-like mid-lateral scales, whereas S.rieppeli is divergent from other Middle Triassic saurichthyids in the block-like haemal arches, fringing fulcra on the pelvic and unpaired fins, and reduction of the squamation to a single row in the abdominal region. Phylogenetic analysis places S.rieppeli in a basal position relative to congeners from the Alpine Triassic, and supports previous hypotheses regarding the convergent evolution of reduced squamation within saurichthyids. S.breviabdominalis forms a monophyletic group with species from the same locality, suggesting divergence in sympatry. This finding has implications for our understanding of disparity and character evolution in saurichthyid fishes, as well as ecomorphological divergence and resource partitioning between closely related fishes in Triassic marine ecosystems.(c) 2015 The Linnean Society of London |
| WOS关键词 | RAY-FINNED FISHES ; MASS EXTINCTION ; AXIAL SKELETON ; FOSSIL FISHES ; BODY SHAPE ; CHINA ; PRESERVATION ; SAUROPTERYGIA ; PHYLOGENY ; PATTERNS |
| WOS研究方向 | Zoology |
| 语种 | 英语 |
| WOS记录号 | WOS:000352096200004 |
| 源URL | [http://124.16.247.212/handle/311034/7462]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 作者单位 | 1.Staatl Museum Naturkunde Stuttgart, D-70191 Stuttgart, Germany 2.Univ Zurich, Palaontol Inst & Museum, Zurich, Switzerland 3.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Maxwell, Erin E.,Romano, Carlo,Wu, Feixiang,et al. Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus[J]. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,2015,173(4):887-912. |
| APA | Maxwell, Erin E.,Romano, Carlo,Wu, Feixiang,&Furrer, Heinz.(2015).Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,173(4),887-912. |
| MLA | Maxwell, Erin E.,et al."Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 173.4(2015):887-912. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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