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Acanthocircus bispinus

Acanthocircus bispinus (Yao, 1972)

Invalid synonym: Spongosaturnalis bispinus

• Extinct species
• Habitat: Marine

• Classification
• kingdom Chromista, infrakingdom Rhizaria, phylum Radiozoa, class Polycystinea, order Entactinaria, family Saturnalidae

• Distribution
• Mesozoic: Aichi