Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus

IVPP-IR > 中科院古脊椎所（2000年以后）

	Two new species of Saurichthys (Actinopterygii: Saurichthyidae) from the Middle Triassic of Monte San Giorgio, Switzerland, with implications for character evolution in the genus
	Maxwell, Erin E.1,2; Romano, Carlo 2; Wu, Feixiang3 ; Furrer, Heinz 2
	2015-04-01
发表期刊	ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
卷号	173 期号:4 页码:887-912
文章类型	Article
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
关键词	Actinopterygii Besano Formation Ladinian Monte San Giorgio Palaeobiogeography Phylogeny Saurichthyidae Triassic
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	RAY-FINNED FISHES ; MASS EXTINCTION ; AXIAL SKELETON ; FOSSIL FISHES ; BODY SHAPE ; CHINA ; PRESERVATION ; SAUROPTERYGIA ; PHYLOGENY ; PATTERNS
收录类别	SCI
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:000352096200004
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7462
专题	中科院古脊椎所（2000年以后）
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.

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