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Science 11 June 1999:
Vol. 284. no. 5421, pp. 1816 - 1819
DOI: 10.1126/science.284.5421.1816
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Reports

Reconstructing Phylogeny with and without Temporal Data

David L. Fox, * Daniel C. Fisher, Lindsey R. Leighton

Conventional cladistic methods of inferring evolutionary relationships exclude temporal data from the initial search for optimal hypotheses, but stratocladistics includes such data. A comparison of the ability of these methods to recover known, simulated evolutionary histories given the same, evolved character data shows that stratocladistics recovers the true phylogeny in over twice as many cases as cladistics (42 versus 18 percent). The comparison involved 550 unique taxon-by-character matrices, representing 15 evolutionary models and fossil records ranging from 100 to 10 percent complete.

Museum of Paleontology, University of Michigan, 1109 Geddes Road, Ann Arbor, MI 48109-1079, USA.
*   To whom correspondence should be addressed. E-mail: dlfox{at}umich.edu

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