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Lychnocanoma bandyca n.sp., a radiolarian found in upper Eocene sediments of two deep-sea cores collected in the central equatorial Pacific, is an excellent index of the lower two-thirds of the Thyrsocyrtis bromia Zone of the tropical radiolarian zonation. This species is distinguished from other species of Lychnocanoma by the circular pores, encased within hexagonal frames, that ornament its campanulate thorax, and by its three prominent cylindrical to conical feet.

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