A new triadotypid insect from the Late Triassic of South Africa

Acta Palaeontologica Polonica

John M. Anderson¹  Olivier Béthoux²  Isabelle Deregnaucourt²  Torsten Wappler³ 

[1] Environmental Studies Institute, Witwatersrand University, 1 Jan Smuts Ave., Braamfontein, Johannesburg 2000, South Africa;Sorbonne Universités, UPMC Univ Paris 06, MNHN, CNRS, Centre de recherche sur la paléontologie-Paris (CR2P), 57 rue Cuvier, CP38, F-75005 Paris, France;Steinmann Institute, University of Bonn, Nussallee 8, 53115 Bonn, Germany;

关键词: Arthropoda;    Odonata;    Pandiscoidalia;    Triassic;    Carnian;    Molteno Formation;    South Africa;   

DOI  :  10.4202/app.00345.2017

来源: DOAJ

【 摘 要 】

Extant odonates (damsel- and dragonflies) represent a small subset of the historical biodiversity of this group. Among their successive stem-groups, the Triadotypomorpha are poorly documented. Herein we describe a new species Reisia rieki from the Molteno Formation (South Africa, Upper Triassic) belonging to this taxon. The comparatively large sample allows a relatively complete description of the wing venation in Triadotypomorpha. We noticed the occurrence of a strongly oblique crossvein located between RA and RP1, a condition documented in some other Pandiscoidalia and which might be of phylogenetic importance. The new species probably inhabited open landscapes and foraged above large water bodies. The documentation of a Gondwanian Triadotypomorpha demonstrates that the group had a worldwide distribution by the Triassic.

【 授权许可】

Unknown