groups: C. apella, C. jacchus, and S. oedipus (Group 1) and
the remaining species (Group 2). The latter could be
further divided into M. fuscata, M. fascicularis, C. aethiops,
P. hamadryas, and P. obscura (Group 2.1) and H. lar, P.
pygmaeus, P. troglodytes, and P. paniscus (Group 2.2). An
in-group reference (H. sapiens) was phylogenetically
placed into this group (Group 2.2).