Williamsonia, Taxa Only, Exact Match: 6 Treatments

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Odonata   new genus  Davis, William Thompson, 1913, Williamsonia, a new genus of dragonflies from North America, Bulletin of the Brooklyn Entomological Society 8, No. 6, pp. 93-96 : 95 95
Weltrichia fabrei     Moreau, Jean-David & Thévenard, Frédéric, 2018, Rediscovery of the allegedly “ destroyed ” holotype of Weltrichia fabrei Saporta, 1891 from the Rhaetian? / Hettangian of Lozère (Southern France), Geodiversitas 40 (21), pp. 521-527 : 524-526 524-526
Williamsoniaceae     Moreau, Jean-David & Thévenard, Frédéric, 2018, Rediscovery of the allegedly “ destroyed ” holotype of Weltrichia fabrei Saporta, 1891 from the Rhaetian? / Hettangian of Lozère (Southern France), Geodiversitas 40 (21), pp. 521-527 : 524 524
Aeshna williamsoniana     Jocque, Merlijn & Garrison, Rosser, 2022, Dragonflies of Cusuco National Park, Honduras; checklist, new country records and the description of a new species of Palaemnema Selys, 1860 (Odonata: Platystictidae), Zootaxa 5188 (5), pp. 453-476 : 462 462
Rotaliida   new species  Brady, H. B., 1881, Notes on some of the Reticularian Rhizopoda of the " Challenger " Expedition. III, Quarterly journal of microscopical science, n. s. 21, No. 81, pp. 31-71 : 56 56
Cytherella williamsoniana     Guernet, Claude & Villier, Loïc, 2017, Les ostracodes de la collection de P. Margerie et l’âge des couches à Laffittéines du Mont Aimé (bassin de Paris, France), Geodiversitas 39 (2), pp. 225-249 : 230-231 230-231