original description(ofOrthonota perlata Barrande, 1881 †)Barrande J. (1881). <i>Systême silurien du centre de la Bohême. Première partie: Recherches paléontologiques, vol. 6. Classe des Mollusques. Ordre des Acéphalés</i>. Prague: Published by the author. , available online athttps://www.biodiversitylibrary.org/page/14947496 page(s): 126, pl. 256, figs 4, 11, 13 [details]
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