MolluscaBase taxon details
original description
(of Spirialis dilatata Koenen, 1892 †) 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): 995 [details]
basis of record
Janssen, A. W. (1990). Pteropoda (Gastropoda, Euthecosomata) from the Australian Cainozoic. <em>Scripta Geologica.</em> 91: 1-76., available online at https://repository.naturalis.nl/document/148727 [details]