ADJ of or relating to a series of rocks formed in the late Triassic period 雷蒂亚阶的
N the Rhaetic series 雷蒂亚统
Rhaetic series瑞提统
rhaetic c stage瑞提阶
ADJ（形容词） of or relating to a series of rocks formed in the late Triassic period 雷蒂亚阶的
N（名词） the Rhaetic series 雷蒂亚统