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Morphological Attributes: Spines: non-spinose Microstructure: microperforate Texture: vermicular or rugose Coiling: biserial Spire: neither high nor low / Umbilical depth: neither deep nor shallow Chamberform on the umbilical side: spherical Keel: no keel / Lip: lip or rim / Tooth: no tooth First occurence: 011.70 / Last occurence: 004.70 |
identified by scientist Quaternary Pleistocene Micronesia + Philippine Basin DSDP Leg 61 FEU-1009612 |  |