埃迪卡拉 āi dí kǎlā
          
              āi dí kǎlā 
              
              proper noun 
              Ediacaran 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain: Geology 
              
              
                , Concept:  
              
              
              
                Notes: c. 635-542 million years ago; Late phase of pre-Cambrian geological era (CC-CEDICT '埃迪卡拉')