representative marine fauna from the cambrian period including sponges and brachiopods - 前寒武紀 幅插畫檔、美工圖案、卡通及圖標
anomalocaris is the largest known predator of cambrian seas and hunted smaller arthropods of that time. - 前寒武紀 幅插畫檔、美工圖案、卡通及圖標