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Tosastroma sp.

genus tosastroma Yabe and Sugiyama, 1935

• Extinct species: Late Jurassic - Early Cretaceous (161.2 - 125.5 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Porifera, class Demospongiae, order Axinellida

• Distribution
• Jurassic: Nagano, Tokyo