Recent research has cast doubt on the reliability of bones and teeth for re
constructing phylogenetic relationships among higher primate species and ge
nera. Herein. we investigate whether this problem is confined to hard tissu
es by examining the utility of higher primate soft-tissue characters for re
constructing phylogenetic relationships at low taxonomic levels. We use cla
distic methods to analyze 197 soft-tissue characters for the extant hominoi
ds and then compare the resulting phylogenetic hypotheses with the group's
consensus molecular phylogeny, which is widely considered to be accurate. W
e show that the soft-tissue characters yield robust phylogenetic hypotheses
that are compatible with the molecular phylogeny. Given the strength of th
e evidence for molecular phylogeny, these results indicate that, unlike cra
niodental hard-tissue characters, soft tissues are reliable for reconstruct
ing phylogenetic relationships among higher primate species and genera. Thu
s, in higher primates at least, some types of morphological data are more u
seful than others for phylogeny reconstruction.