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Hexanchus sp., Sixgill shark(s)

genus Hexanchus Rafinesque, 1810

• Modern species: Early Jurassic - Present (189.6 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Chordata, class Elasmobranchii, order Hexanchiformes, family Hexanchidae

• Distribution
• Miocene: Nagano, Saitama, Gifu