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Morphological Attributes: Wallmaterial: hyaline Overall appearance: coiled spirally Coiling: trochospiral Chamberform: triangular to trapezoid Aperture Position: umbilical extraumbilical Aperture Form: slit, no tooth, no neck, no lip Sutures: --, --, -- Ornamentation: --, --, --, -- |
identified by scientist Paleogene Paleocene Danian North Africa El Kef FEU-1009266 |  | identified by scientist Paleogene Paleocene Thanetian North Africa Bir Inglisi FEU-1009329 |  | identified by scientist Cretaceous Upper Cretaceous Maastrichtian East European Platform Lviv FEU-1010841 |  | identified by C. Brizio Cretaceous Upper Cretaceous Maastrichtian American South Washington (AR) FEU-1027904 |  | identified by C. Brizio Cretaceous Upper Cretaceous Maastrichtian American South Washington (AR) FEU-1027905 |  |
identified by C. Brizio Cretaceous Upper Cretaceous Maastrichtian American South Washington (AR) FEU-1027910 |  |