Cladogram of Cetacea within Artiodactyla

Strict consensus of 20 minimum length trees for the equally-weighted
parsimony analysis of the combined data set (57,269 steps).

The contents
of 12 taxonomic groups, including the total clades Cetaceamorpha and
Cetancodontamorpha are delimited by different colored boxes (‘Hippo’ =

Lineages that connect extant taxa in the tree are
represented by thick gray branches, and wholly extinct lineages are
shown as thin black branches.

Estimates of branch support scores are
above internodes; given the complexity of the data set, these should be
interpreted as maximum estimates.

Illustrations are by C. Buell and L.


Spaulding M, O’Leary MA, Gatesy J (2009) Relationships of Cetacea
(Artiodactyla) Among Mammals: Increased Taxon Sampling Alters
Interpretations of Key Fossils and Character Evolution.
PLoS ONE 4(9):
e7062. doi:10.1371/journal.pone.0007062


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