Gastropoda - Sorbeoconcha - Hipponicidae

Alternative combination: Cyclostoma spiruloides

Full reference: J. B. Lamarck. 1804. Suite des mémoires sur les fossiles des environs de Paris. Annales du Muséum National d'Histoire Naturelle 4:105-115

Belongs to Eoatlanta according to Ravn 1933

See also Deshayes 1824 and Lamarck 1804

Sister taxon: Eoatlanta ravni

Type specimen: Its type locality is Grignon (Defrance collection), which is in a Lutetian open shallow subtidal sandstone/sandstone in France

Distribution: found only at Grignon (Defrance collection)

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Specimen images are retrieved through the ePANDDA API.