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Morphological Attributes: Wallmaterial: hyaline Overall appearance: elongate Coiling: biserial Chamberform: triangular to trapezoid Aperture Position: terminal Aperture Form: arcuate lunear arch, --, --, -- Sutures: depressed, curved, -- Ornamentation: --, --, spinose, keeled |
identified by scientist Quaternary Holocene recent Patagonia and off Challenger Station 305 FEU-1003461 |  |