the state or condition of a group of organisms that is in a late stage of evolutionary development.
| 单词 | θ19420 | 
| 释义 | the world > life > biology > biological processes > evolution > 			[noun]		 > stages of evolution (2)		 phylogerontism1902 the state or condition of a group of organisms that is in a late stage of evolutionary development. stasigenesis1957 A stable phase of evolution, characterized by a lack of significant change over a long period of time.  | 
	
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