Traits taxon details
original description
(of ) Koken, E. (1925). Die Gastropoden des baltischen Untersilurs [fortgesetzt von Jar. Perner]. <em>Zapiski Rossiskoi Akademii Nauk. ser. 8, Otdel Fiziko-Mathematicheskikh Nauk [= Mémoires de l'Académie des Sciences de Russie, ser. 8, Classe Physico-mathématique].</em> 37(1): 1-326, 41 pls., available online at https://www.digar.ee/viewer/et/nlib-digar:330244/290873/page/3 page(s): 87, pl. 16 figs 13-14 [details] Available for editors 
basis of record
Wagner, P. J. (2002). Phylogenetic relationships of the earliest anisostrophically coiled gastropods. <em>Smithsonian Contributions to Paleobiology.</em> 88: 1-152., available online at https://www.biodiversitylibrary.org/page/58078617 page(s): 76 [details] Available for editors 
additional source
Ebbestad, J. O. R.; Högström, A. E. S.; Frisk, Å. M. (2013). Gastropods and tergomyans from the Upper Ordovician (Viru–Harju) of the Fågelsång area, Scania, southern Sweden. <em>Journal of Systematic Palaeontology.</em> 11(3): 295-336. [online 2012]., available online at https://doi.org/10.1080/14772019.2012.660994 page(s): 319-322, figs 11A–H, 12E–G, K, L [details] Available for editors 
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