| 单词 |
diphyletic |
| 释义 |
diphyletic, a. Taxonomy.|daɪfɪˈlɛtɪk| [f. di-2 + phyletic a.] Having two lines of descent; supposedly derived from two distinct sets of ancestors; also, of or pertaining to a classification of groups of organisms in accordance with the view that they have a diphyletic origin.
1902Nature 25 Sept. 526 The ‘Myriapoda’, if a natural group, are diphyletic. 1903Amer. Nat. Jan. 74 The diphyletic origin of the birds as represented by the Ratitæ and Carinatæ. 1912Rep. Brit. Assoc. 578 Yet others claim a diphyletic origin for Man from the Apes. 1963Davis & Heywood Princ. Angiosperm Taxon. ii. 46 A species (or unit of lower rank) derived by hybridisation between two ancestral species..is diphyletic by either definition. |

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