Iverya averyi gen.nov.and sp.nov.,a New Triadotypomorphan Species from the Middle Triassic at Picton,New South Wales,Australia  

作　　者：Olivier BETHOUX Robert G.BEATTIE 

机构地区：[1]Freiberg University of Mining and Technology,Institute of Geology,Department of Palaeontology,D-09596 Freiberg,Germany [2]Senckenberg Natural History Collections of Dresden,Museum of Zoology,D-01109 Dresden,Germany [3]P.O.Box 320,Berry,N.S.W.,Australia [4]The Australian Museum,Sydney,NSW 2010,Australia

出　　处：《Acta Geologica Sinica(English Edition)》2010年第4期688-692,共5页地质学报（英文版）

摘　　要：A new specimen assigned to the species Iverya averyi gen. nov. and sp. nov. is described. This species is considered as a triadotypomorphan insect, a poorly known group of Triassic stem-odonatans. Like other triadotypomorphans, this species exhibits an area between MA and MP that is comparatively broad, and a cubitoanal area involving an AA stem distinct from CuA ＋ CuP ＋ AA emitting several posterior branches. Diagnostic character states of the new species are listed. Although incomplete, the specimen provides new information on the wing morphology of triadotypomorphans. This discovery might contribute to better assessment of the phylogenetic position of triadotypomorphan species with respect to other stem-odonatans.A new specimen assigned to the species Iverya averyi gen. nov. and sp. nov. is described. This species is considered as a triadotypomorphan insect, a poorly known group of Triassic stem-odonatans. Like other triadotypomorphans, this species exhibits an area between MA and MP that is comparatively broad, and a cubitoanal area involving an AA stem distinct from CuA ＋ CuP ＋ AA emitting several posterior branches. Diagnostic character states of the new species are listed. Although incomplete, the specimen provides new information on the wing morphology of triadotypomorphans. This discovery might contribute to better assessment of the phylogenetic position of triadotypomorphan species with respect to other stem-odonatans.

关 键 词：Odonatoptera ODONATA Triadotypidae Wianamatta 

分 类 号：Q915[天文地球—古生物学与地层学]