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7. PHYLOGENY OF ICHTHYOSAURS

Many ichthyosaurs are known only from fragmentary material and unsuitable for phylogenetic analyses at the moment. When choosing 27 better-known taxa, a phylogenetic analysis gave the following strict consensus tree. See Motani (1999) for details of the analysis.

There have been other studies of ichthyosaurian phylogeny since Motani (1999). I will deal with them in the future.

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Last updated on November 15, 2000