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recapitulation of phylogeny
recapitulation of phylogeny Theory, due to E. Haeckel (1834–1919), asserting that ontogeny (the development of the individual) recapitulates or reflects the phylogeny (the evolutionary history of the group). The theory as such has been rejected as not of general applicability, von Baer's ‘biogenetic law’ being sufficient explanation for the observations on which it was based. However, either hypermorphosis or retardation of sexual maturity can result in individual cases of recapitulation.
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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O13-recapitulationofphylogeny.html AILSA ALLABY and MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Earth Sciences. 1999. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-recapitulationofphylogeny.html |
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recapitulation of phylogeny
recapitulation of phylogeny A theory, due to E. H. Haeckel, asserting that ontogeny (the development of the individual) recapitulates or reflects the phylogeny (the evolutionary history of the individual). The theory as such has been rejected as not of general applicability, von Baer's ‘biogenetic law’ being sufficient explanation for the observations on which it was based. However, either hypermorphosis, acceleration, or predisplacement can result in individual cases of recapitulation.
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Cite this article
MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Zoology. 1999. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O8-recapitulationofphylogeny.html MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Zoology. 1999. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-recapitulationofphylogeny.html |
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recapitulation of phylogeny
recapitulation of phylogeny A theory, due to E. F. Haeckel, asserting that ontogeny, the development of the individual, recapitulates or reflects the phylogeny, the evolutionary history of the individual. The theory as such has been rejected as not of general applicability, von Baer's biogenetic law being sufficient explanation for the observations on which it was based. However, either hypermorphosis or retardation of sexual maturity can result in individual cases of recapitulation.
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Cite this article
MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O7-recapitulationofphylogeny.html MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Plant Sciences. 1998. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-recapitulationofphylogeny.html |
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recapitulation of phylogeny
recapitulation of phylogeny A theory proposed by E. F.Haeckel, asserting that ontogeny (the development of the individual) recapitulates or reflects the phylogeny (the evolutionary history of the individual). The theory as such has been rejected as vague, von Baer'sbiogenetic law providing sufficient explanation for the observations on which it was based. Apart from postdisplacement, most types of heterochrony can result in recapitulation.
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Cite this article
MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Ecology. 2004. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Ecology. 2004. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O14-recapitulationofphylogeny.html MICHAEL ALLABY. "recapitulation of phylogeny." A Dictionary of Ecology. 2004. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-recapitulationofphylogeny.html |
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