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Morphological Attributes: Wallmaterial: agglutinated Overall appearance: round and flat Coiling: tubular enrolled Chamberform: tubular Aperture Position: terminal Aperture Form: round oval reniform, no tooth, no neck, no lip Sutures: depressed, curved, -- Ornamentation: --, --, --, -- |
type specimen holotype Jurassic Middle Jurassic Callovian Midwestern USA unknown FEU-1006847 |  |