Guzhangian 2019-03-25T13:21:08.699Z 8 Guzhangien 2022-12-08T06:54:22.881Z 2020-11-20T15:40:38.775Z h.bressan@brgm.fr Hélène Bressan 2022 2019-03-25T13:23:23.134Z 223 false 204 k4c true Guzhangian Ꞓ7 GUZH Guzhangian 170 Monde Guzhangien Gradstein et al. (2012) Guzhangien