| 释义 |
proterogenesis Biol.|prɒtərəʊˈdʒɛnɪsɪs|
[mod.L. (coined in Ger. by O. H. Schindewolf 1925, in Neues Jahrb. f. Min., Geol. und Paläont. LII. b. 337): see protero- and -genesis.]
The anticipation of future evolutionary development in the early stages of an organism's life. Hence ˌproterogeˈnetic a., -geˈnetically adv.
1938Rep. Brit. Assoc. Adv. Sci. 79 Among the examples quoted by Schindewolf in support of the principle of proterogenesis is one drawn from the cephalopod family the Clymendiæ which lived during the Devonian period. It consists of a number of genera and species in which, at one end of the series, the shell has the normal type of spiral coil..with an almost circular outline throughout development. In the next member of the series the innermost portion of the spiral has a triangular outline. In other members of the series the latter form of outline finds every degree of expression up to one in which it prevails at all stages of growth, including the adult. The series as it stands may be quoted in support of either the proterogenetic or the tachygenetic view, according to which end of the series is taken as the starting point. Schindewolf adopts the former. Ibid. 82 Trend characters, on the other hand, arise either cœnogenetically or deuterogenetically and proceed proterogenetically or tachygenetically towards later or earlier stages in life-history respectively in successive generations. 1947A. M. Davies Introd. Palæont. (ed. 2) iv. 139 In some cases this change is contrary to the rule of palingenesis, since the youthful whorl-shape foreshadows the adult whorl-shape of forms that come later in time... This reverse sequence to that of palingenesis is termed proterogenesis or cænogenesis, and has been observed in other animal phyla, particularly in the Graptolites. 1947H. H. Swinnerton Outl. Palæont. (ed. 3) x. 195 The significance of the inner capricorn whorls in alimorphs may accordingly become anticipatory or recapitulatory, proterogenetic or palingenetic according to which view is adopted. 1966Davis & Langerl tr. Hennig's Phylogenetic Systematics iii. 228 The theory of the ‘early ontogenetic origin of types’ assumes a special place in discussions of the origin of higher categories or new types. Equivalent or nearly equivalent are the concepts of ‘proterogenesis’ (Schindewolf), paedomorphism (Garstang), and—as Wettstein 1942 emphasizes—the designations diametagenesis.., fetalization.., and neomorphosis. |