Sedgwick
/ˈsedʒwɪk/- Sedgwick, Adam (1785-1873), English geologist. He specialized in the fossil record of rocks from North Wales, assigning the oldest of these to a period that he named the Cambrian.塞奇威克, 亚当（1785-1873, 英国地质学家, 专门研究北威尔士的化石记录, 并将其中最古老的化石的存在时期命名为寒武纪）。