Genus: Nipponopelta OYABUM KOBAYASHI, ZELENITSKY, FIORILLO & KANO, 2026
Etymology: "Nippon" refers to Japan, and Greek,pelta, "shield."

Species: yzoensis OYABUM KOBAYASHI, ZELENITSKY, FIORILLO & KANO, 2026
Etymology: Yezo, the traditional name for Hokkaido Island, where the specimen was discovered.

Holotype: MCM A522

Locality: Yubari City, Hakkaido Prefecture, Hakkaido Island, Japan.

Horizon: Marine member, Upper part of the Hikagenoswa Formation, Yezo Group.

Biostratigraphy:

Age: Upper Cenomanian Stage, Middle Gallic Subepoch, Early Gulf Epoch, Middle Cretaceous.

Material: Partial skull, partial mandible, 11 associated teeth, a partial atlas, and 3 detached osteoderms.