单词 | macroevolution |
释义 | macroevolutionn. Major evolutionary change, usually over a long period; the evolution of genera or higher taxa. ΚΠ 1937 T. Dozhansky Genetics & Origin of Species i. 12 For this reason we are compelled at the present level of knowledge reluctantly to put a sign of equality between the mechanisms of macro- and micro-evolution. 1940 R. Goldschmidt Material Basis Evol. iii. 8 Microevolution..has been used..for evolutionary processes observable within the span of a human lifetime as opposed to macroevolution, on a geological scale. 1972 Listener 3 Aug. 138/2 There may be a different mechanism for grand heroic macro-evolution and for ordinary humdrum everyday evolution at species or sub-species level. 1989 E. Lawrence Guide Mod. Biol. v. 165 The evidence of the fossil record and the study of the comparative anatomy and physiology of extant organisms provides the raw material for the study of macroevolution. 2001 Nature 8 Feb. 669 The concept of macroevolution is better clarified when broken down into its two major component parts: phyletic and morphological evolution. Derivatives macroevoˈlutionary adj. ΘΚΠ the world > life > biology > biological processes > evolution > [adjective] > processes or types of evolution high?1548 recapitulative1836 retrogressive1853 transmutational1861 ontogenetic1869 convergent1871 phylogenetic1876 correlative1877 ontogenic1878 phylogenetical1879 phytogenetic1882 monotypic1888 phytogenetical1888 polytypic1888 ontogenal1890 phylogenal1890 recapitulatory1890 tachygenetic1893 ontogenetical1894 anagenetic1896 orthogenic1896 orthogenetic1899 macroevolutionary1937 microevolutionary1937 proterogenetic1938 speciational1944 parapatric1953 cladogenetic1957 allochronic1960 stasigenetic1965 stasipatric1967 speciating1970 punctuational1976 tachygenic- 1937 T. Dozhansky Genetics & Origin of Species i. 12 Experience seems to show..that there is no way toward an understanding of the mechanisms of macro-evolutionary changes..other than through a full comprehension of the micro-evolutionary processes observable within the span of a human lifetime. 1993 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. (ed. 3) ii. 45/1 Though species selection is the basis of much macroevolutionary change, it is not the only agent. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1937 |
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