Holotype:

Locality: KO2 locality, 36°03’N, 136°53’E, Locality no. 2 in HASEGAWA et al. 1995, Kobudani Valley, near Shokawa village, Gifu Prefecture, Honshu Island, Japan.

Horizon: Okurondani Formation, Tetori Group.

Biostratigraphy:

Age: Hauterivian Stage, upper Neocomian subepoch, lower Early Cretaceous Epoch, Early Cretaceous.

Material: