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Spatangoida fam., gen. et sp. indet., Spatangoid(s)

order Spatangoida L. Agassiz, 1840

• Modern species
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Echinodermata, class Echinoidea

• Distribution
• Jurassic: Mie
• Cretaceous: Iwate, Wakayama, Kagawa
• Miocene: Fukushima, Nagano, Ishikawa, Fukui, Tokyo, Aichi, Gifu, Mie, Tottori, Kagawa
• Miocene-Pliocene: Nagano

• Distribution (Creeping and crawling marks)
• Miocene: Aichi
• Pliocene: Aomori

• Subtaxa
• Brissopsis, genus
• Heteraster hiranamensis
• Heteraster macroholcus
• Heteraster nexilis
• Linthia, genus
• Paraheteraster macroholcus
• Schizaster, genus