Species: matsubaraetoheorum KUBOTA, KOBAYASHI & IKEDA, 2024
Etymology: In honors of Mrs. Kaoru Matsubara and Takaharu Ohe, who are the first discoveriers of a block including a part of Hypnovenator matsubaraetoheorum holotype specimen.

Holotype: MNHAH D1033340

Locality: Hyogo Prefectural Tamba Namikimichi Central Part at Nishikosa, Tambasasayama City, Hyogo Prefecture, Honshu Island, Japan.

Horizon: Ohyamashiomo Formation, Sasayama Group.

Biostratigraphy:

Age: Middle Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Late Early Cretaceous

Material: 3 caudal vertebrae, 2 dorsal ribs, 38 gastalia, a chevron, left humerus, left radius, left ulna, left carpal, left metacarpals I to III, the distal end of right metacarpal I, left manual phalanges I-1, I-2, II-1, II-3, and III-1 to 4, the distal part of left femur, left tibia and fibula missing teh mid-shaft, teh distal end of right tibia, left astragalus, the distal end of right astragalus, the proximal parts of left metatarsals II to V, the proximal ends of right metatarsals II and IV, right pedal phalanges II-3, III-1 to 4, and IV-1 to 5.