A new record of late Permian (Wuchiapingian) ammonoid Stacheoceras from an exotic limestone block in the Yarlung-Zangbo Suture Zone, South Xizang (Tibet), China - Xin-Yuan Sun; Xu Dai; Xiao-Kang Liu; Shou-Yi Jiang; Hai-Jun Song (Palaeoworld, 2026)