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Spongodiscus biconcavus

Spongodiscus biconcavus Haeckel, 1887

• Modern species
• Habitat: Marine

• Classification
• kingdom Chromista, infrakingdom Rhizaria, phylum Radiozoa, class Polycystinea, order Spumellaria, family Spongodiscidae, genus Spongodiscus

• Distribution
• Miocene: Tochigi