Electronic Resource
[s.l.]
:
Nature Publishing Group
Nature
304 (1983), S. 660-661
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] THERE are two views of evolutionary pattern and process: either that most change occurs during relatively brief periods of speciation (the punctuation model) or that such changes occur gradually in established lineages (the gradualistic model). Williamson1 concludes from his study of fossil ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/304660a0
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