Main
Key to Species
About
Contact
|
Morphological Attributes: Wallmaterial: hyaline Overall appearance: coiled spirally Coiling: trochospiral Chamberform: triangular to trapezoid Aperture Position: umbilical extraumbilical Aperture Form: slit, --, --, lip Sutures: depressed, curved, -- Ornamentation: --, --, --, -- |
type specimen holotype Cretaceous Upper Cretaceous Campanian Weddell Sea Seymour Island FEU-1006648 |  | type specimen holotype Cretaceous Upper Cretaceous Campanian Weddell Sea Seymour Island FEU-1006649 |  |