Genus: Tambatitanis SAEGUSA & IKEDA, 2014
Etymology: In reference to the Tamba, the northwestern region of Kansai Area, SW Japan, where the type specmen was collected, and Greek, titanis, refers to giants, symbolic of the great size of the specimen.

Species: amicitiae SAEGUSA & IKEDA, 014
Etymology: Latin, amictia, "friendship," refers to the friendship between messrs. Murakami Shigeru and Adachi Kiyoshi who found the holotpe skeleton of this new species, in August, 2006.

Holotype: MNHAH D-1029280

Locality: Kamitaki, Sannan-cho, Tamba City, Hyogo Prefecture, Honshu Island, Japan.

Horizon: "Lower" Formation, of the Sasayama Group.


Age: Porbably early Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: A partial skeleton represented by teeth, a braincase, dentary, atals, a fragmentary cervical vertebra, fragmentary dorsal vertebrae, dorsal ribs, first sacral ribs, spines of sacral vertebrae, a pubis, an ilium, caudal vertebrae and chevrons.