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Hexacontium sp.

genus Hexacontium Haeckel, 1881

• Extinct species: Middle - Late Triassic (247.2 - 235.0 Ma)
• Habitat: Marine

• Classification
• kingdom Chromista, infrakingdom Rhizaria, phylum Radiozoa, class Polycystinea, order Spumellaria, family Actinommidae

• Distribution
• Investigation in progress: Niigata