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
© Olivier Bethoux, Rowan E. Norrad, Matthew R. Stimson, Olivia A. King, Luke F. Allen, Isabelle Deregnaucourt, Steven J. Hinds, Jake H. Lewis, Jörg W. Schneider.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Bethoux O, Norrad RE, Stimson MR, King OA, Allen LF, Deregnaucourt I, Hinds SJ, Lewis JH, Schneider JW (2021) A unique, large-sized stem Odonata (Insecta) found in the early Pennsylvanian of New Brunswick (Canada). Fossil Record 24(2): 207-221. https://doi.org/10.5194/fr-24-207-2021
Open Access
Abstract

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.