Parapithecoidea
Seiffert "et al . " ( 2010 ) propose that Parapithecoidea arose during the Bartonian ( middle Eocene ) , with a split between "Biretia" and the Parapithecidae occurring early in the Priabonian ( late Eocene ) . 
<triplet> Bartonian <subj> Eocene <obj> part of <triplet> Priabonian <subj> Eocene <obj> part of