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Morphological Attributes: Wallmaterial: hyaline Overall appearance: Coiling: Chamberform: Aperture Position: Aperture Form: , , , Sutures: , , Ornamentation: , , , |
type specimen holotype Cretaceous Upper Cretaceous unknown FEU-1022598 |  | type specimen holotype Cretaceous Upper Cretaceous Mexico and Middle America unknown FEU-1008604 |  | identified by scientist Paleogene Eocene Ypresian North Africa Gebel Oweina FEU-1009314 |  |