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Scaphechinus sp.

genus Scaphechinus A. Agassiz, 1864

Invalid synonym: subgenus Echinarachnius (Scaphechinus)

• Modern species: early Pleistocene - Present (1.8 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Echinodermata, class Echinoidea, order Clypeasteroida, family Echinarachniidae

• Distribution
• Pliocene: Aomori, Toyama
• Quaternary: Hiroshima
• Pleistocene: Niigata, Toyama, Ibaraki, Chiba, Aichi
• Holocene: Aichi

• Subtaxa
• S. mirabilis
• S. tenuis