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Morphological Attributes: Spines: non-spinose Microstructure: finely perforate Texture: smooth Coiling: trochospiral Spire: low / Umbilical depth: neither deep nor shallow Chamberform on the umbilical side: triangular Keel: keel / Lip: lip or rim / Tooth: no tooth First occurence: 013.13 / Last occurence: 011.79 |
identified by scientist Neogene Miocene Micronesia + Philippine Basin DSDP Leg 61 FEU-1009613 |  |