The Ohyamashimo Formation is an Early Cretaceous geologic formation in Japan. It has been dated to the early-mid Albian, between 112.1 ± 0.4 Ma and 106.4 ± 0.4 Ma. From Wikipedia
Sasayamagnomus saegusai, a tiny early-branching neoceratopsian, offers insights into dinosaur migration patterns.
