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Morphological Attributes: Spines: non-spinose Microstructure: macroperforate Texture: muricate to pustulose Coiling: trochospiral Spire: low / Umbilical depth: deep Chamberform on the umbilical side: subspherical to trapezoid Keel: no keel / Lip: lip or rim / Tooth: no tooth First occurence: 049.4 / Last occurence: 040.6 |
type specimen holotype Paleogene Eocene Arabian Sea DSDP Leg23A Site 220 FEU-1006703 |  |