单词 | phylogerontism |
释义 | > as lemmasphylogeˈrontism phylogeˈrontism n. now rare the state or condition of a group of organisms that is in a late stage of evolutionary development. ΘΚΠ the world > life > biology > biological processes > evolution > [noun] > stages of evolution phylogerontism1902 stasigenesis1957 1902 Amer. Naturalist 36 940 In the majority of specialized gastropods phylogerontism is expressed, not in the non-coiling of the last portion of the spire, but in its expansion and wrapping about the earlier whorls. 1949 Evolution 3 104/1 There certainly is no indication, in the present state of knowledge, that phyletic growth leads to phylogerontism and ‘causes’ racial extinction. < as lemmas |
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