English: Locality maps and geology in Tambasasayama and Tamba cities, Hyogo Prefecture, Japan. (A) Map of Japan showing the locations of Tambasasayama (dark blue) and Tamba cities (light blue) in Hyogo Prefecture. (B) Distribution of the Sasayama Group in Tambasasayama and Tamba cities. (C) Stratigraphic sections of the Sasayama Group, adapted from Hayashi et al. U–Pb ages in the lower parts of the Ohyamashimo and Sawada formations were obtained by Kusuhashi et al. The routes for the stratigraphic sections are shown in (D). The stratigraphic positions of the localities (A) Kamitaki, (B) Kawashiro Tunnel, (C) Nishikosa (where Hypnovenator matsubaraetoheorum gen. et sp. nov. was recovered), and (D) Miyada are indicated by red circles. (D) Geological map of the Sasayama Group, fossil localities, and routes for stratigraphic sections. This map is after Yoshikawa. This figure was created using Adobe Illustrator 28.3 (https://www.adobe.com/).