Threefold and Fourfold Parallelisms
December 22, 2009 |
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Category: Biology, Neoteny, Ontogeny, Sexual Selection, Society
“Before Agassiz, recapitulation had been defined as a correspondence between two series: embryonic stages and adults of living species. Agassiz introduced a third series: the geologic record of fossils. An embryo repeats both a graded series of living, lower forms and the history of its type as recorded by fossils. There is a “threefold parallelism” of embryonic growth, structural gradation, and geologic succession. ‘It may therefore be considered as a general fact, very likely to be more fully illustrated as investigations cover a wider ground, that the phases of development of all living animals correspond to the order to succession of their extinct representatives in past geological times. As far as this goes, the oldest representatives of every class may then be considered as embryonic types of their respective orders of familiar among the living.’” (1857, 1962 ed., p. 114) (Stephen J. Gould, Ontogeny and Phylogeny (Cambridge: Belknap Press, 1977), pp. 65-66.)
Stephen J. Gould’s Ontogeny and Phylogeny lies at the heart of many of the interconnecting concepts of this thesis. Ontogeny and Phylogeny made sense of many of the disciplines I’d been studying for many years, showing how evolutionary theory informs many levels of experience. Central to Gould’s thesis…


