Fossil Record 24(2): 207-221, doi: 10.5194/fr-24-207-2021
A unique, large-sized stem Odonata (Insecta) found in the early Pennsylvanian of New Brunswick (Canada)
expand article infoOlivier Bethoux, Rowan E. Norrad§, Matthew R. Stimson|, Olivia A. King|, Luke F. Allen§, Isabelle Deregnaucourt, Steven J. Hinds#, Jake H. Lewis¤, Jörg W. Schneider«
‡ MNHN, UPMC, CNRS, Paris, France§ Citadel High School, 1855 Trollope St., Halifax, Nova Scotia, B3H 0A4, Canada| Department of Geology, Saint Mary's University, 923 Robie St., Halifax, Nova Scotia, B3H 3C3, Canada¶ CR2P (Centre de Recherche en Paléontologie – Paris), MNHN – CNRS – Sorbonne Université, 57 rue Cuvier, CP38, 75005, Paris, France# Geological Surveys Branch – New Brunswick Department of Natural Resources and Energy Development, 135 Regent St., Fredericton, New Brunswick, E3C 2G6, Canada¤ Canadian Museum of Nature, 1740 Pink Road, Gatineau, Quebec, J9J 3N7, Canada« Kazan Federal University, Institute of Geology and Petroleum Technologies, Kremlyovskaya 18, 420008, Kazan, Russia
Open Access

A stem relative of dragon- and damselflies,Brunellopteron norradi Béthoux, Deregnaucourt and Norrad gen. et sp. nov., is documentedbased on a specimen found at Robertson Point (Grand Lake, New Brunswick,Canada; Sunbury Creek Formation; early Moscovian, Pennsylvanian) andpreserving the basal half of a hindwing. A comparative analysis of theevolution of wing venation in early odonates demonstrates that it belongs toa still poorly documented subset of species. Specifically, it displays aMP + CuA fusion, a CuA + CuP fusion, and a CuP + AA fusion, but it lacks the“extended” MP + Cu / CuA fusion and the “extended” (CuP / CuA + CuP) + AA fusion,the occurrence of which is typical of most Odonata, including Meganeura-like species. Theoccurrence of intercalary veins suggests that its closest relative might beGallotypus oudardi Nel, Garrouste and Roques, 2008, from the Moscovian of northern France.