Reference: Fleagle's Primate adaptation and evolution (second edition).
Cercopithecoids are members of the primate family, Cercopithecidae. Examples include old world monkeys such as Macaques and Colobus. These members of the primate family are found in the suborder anthropoidea, infraorder catarrhini.
Examining osteological of digit versus palm hand postures helps to identify cercopithecoid fossils. Paleontologists examine these ape hand fossils to determine how apes have evolved.
There are many, many different species and subspecies of monkeys. Each has its own unique markings. 264 species of monkeys are known. Monkeys are divided into two groups, old world (cercopithecoid) and new world (platyrrhine). They are quite distinct from each other. The old world monkeys are closely related to apes, while new world monkeys are very distant from apes and other monkeys.
the major groups of living primates. • Tarsiers • Lorises and galagos (bushbabies) • Lemurs (Madagascar only) • Platyrrhine monkeys (all New World primates) • Cercopithecoid monkeys • Apes So no they are not the same animal