Sasayama Group

？阿尔比阶早期）一属已灭绝的巨龙形类恐龙，模式种兼唯一种友谊丹波巨龙（Tambatitanis amicitiae）发现于筱山群（英语：Sasayama Group）。该物种长约14米，重约4吨，是巨龙形类的一个基群，可能属于盘足龙科。正模标本收集于2006至2010年间。 Saegusa, H.;

Masaki. Stratigraphy and paleoenvironment of the Cretaceous Sasayama Group in the Sasayama area, Hyogo Prefecture, western Japan. The Journal of the Geological

Ikeda, Tadahiro; Handa, Kumiko. Additional dinosaur materials from the Sasayama Group of Hyogo Prefecture, SW Japan (PDF). The Palaeontological Society of

Anguimorpha) from the Lower Cretaceous Ohyamashimo Formation of the Sasayama Group in Tamba City, Hyogo Prefecture, Japan. Cretaceous Research. 130, 105063

Saegusa Haruo; et al. A new Early Cretaceous eutherian mammal from the Sasayama Group, Hyogo, Japan. Proceedings of the Royal Society B. 2013, 280 (1759)