Sumixam maximus gen. and sp. nov., a New Pennsylvanian Species of Archaeorthoptera (Neoptera; Indiana, USA)

被引:0
|
作者
Bethoux, Olivier [1 ,2 ]
Grossmann, Christin [2 ]
机构
[1] Freiberg Univ Min & Technol, Inst Geol, Dept Palaeontol, D-09596 Freiberg, Germany
[2] Senckenberg Nat Hist Collect Dresden, Museum Zool, D-01109 Dresden, Germany
关键词
Insecta; Upper Carboniferous; Mazon Creek; MAZON CREEK; WING VENATION; INSECT;
D O I
10.1111/j.1755-6724.2011.00445.x
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A new Mazon-Creek-type fossil specimen is described as Sumixam maximus gen. and sp. nov., assigned to the taxon Archaeorthoptera Bethoux and Nel, 2002 (composed of Orthoptera and some fossil relatives): it exhibits one of the diagnostic character states of this taxon, which is the fusion of CuA (emerging from M + CuA) with CuP, or a branch of it. A more precise taxonomic assignment is out of reach. The new taxon exhibits a fusion of the anterior branch of MA with RP, and a point of divergence of and located near the point of divergence of CuA (from M + CuA), but lack a branching of CoPa. This unique combination of character states is probably derived with respect to a number of contemporaneous species. Sumixam maximus gen. and sp. nov. is most likely the closest known relative of the panorthopterans, which include all the recent Archaeorthoptera.
引用
收藏
页码:515 / 520
页数:6
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