original description
Koenen, A.v. (1892). Das Norddeutsche Unter-Oligocän und seine Mollusken-Fauna. Lieferung IV: Rissoidae - Littorinidae - Turbinidae - Haliotidae - Fissurellidae - Calyptraeidae - Patellidae. II. Gastropoda Opisthobranchiata. III. Gastropoda Polyplacophora. 2. Scaphopoda - 3. Pteropoda - 4. Cephalopoda. <em>Abhandlungen zur geologischen Specialkarte von Preussen und den Thüringischen Staaten.</em> 10(4): 819-1004., available online at https://www.biodiversitylibrary.org/page/35938733
page(s): 824-825; plate LV, Figs 7a-c [details]
From editor or global species database
Homonymy Junior primary homonym of R. obtusa Brown, 1841; R. obtusa Cantraine, 1842, and of R. abyssicola var. obtusa Jeffreys, 1870 [details]