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Morphological Attributes: Wallmaterial: hyaline Overall appearance: elongate Coiling: spiral to serial Chamberform: triangular to trapezoid Aperture Position: terminal Aperture Form: radiate, no tooth, no neck, no lip Sutures: raised, curved, -- Ornamentation: --, --, --, keeled |
identified by M. Hesemann Jurassic Lower Jurassic Toarcian North-Western France Vendee FEU-1012325 |  | identified by M. Hesemann Jurassic Lower Jurassic Pliensbachian North-Western France Vendee FEU-1012326 |  |