Sea urchin (Echinoidea)

Jukkoku pass

Narahara, Ueno city, Tano county, Gunma pref., Japan

Late Cretaceous, Mesozoic (95 Ma)

Width: 50 mm. Fossil of Sea urchin (Echinoidea). Recovered from mudstone of the Late Cretaceous (95 Ma) Miyama Formation, a member of shallow marine sediments in the Sanchu Graben.

Other localities

Sea urchin in Cenozoic (Kuzubukuro, Saitama pref.)
Sea urchin in Mesozoic (Jukkoku pass, Gunma pref.)