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

作者：Bethoux Olivier^*; Beattie Robert G

来源：Acta Geologica Sinica (English Edition), 2010, 84(4): 688-692.

• Odonatoptera
• Odonata
• Triadotypidae
• Wianamatta

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.

• 出版日期2010