Please answer the following question: Information: - A sagittal crest is a ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) of many mammalian and reptilian skulls, among others. The presence of this ridge of bone indicates that there are exceptionally strong jaw muscles. The sagittal crest serves primarily for attachment of the temporalis muscle, which is one of the main chewing muscles. Development of the sagittal crest is thought to be connected to the development of this muscle. A sagittal crest usually develops during the childhood of an animal in conjunction with the growth of the temporalis muscle, as a result of convergence and gradual heightening of the temporal lines. - The Chacma baboon ("Papio ursinus"), also known as the Cape baboon, is, like all other baboons, from the Old World monkey family. It is one of the largest of all monkeys. - In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs. - Mammals are any vertebrates within the class Mammalia (from Latin "mamma" "breast"), a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex (a region of the brain), hair, three middle ear bones and mammary glands. The sister group of mammals may be the extinct "Haldanodon." The mammals represent the only living Synapsida, which together with the Sauropsida form the Amniota clade. The mammals consist of the Yinotheria including monotrema and the Theriiformes including the theria. - Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen or a scientific name; more informally it is also called a Latin name. The first part of the name identifies the genus to which the species belongs; the second part identifies the species within the genus. For example, humans belong to the genus "Homo" and within this genus to the species "Homo sapiens". The "formal" introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work "Species Plantarum" in 1753. But Gaspard Bauhin, in as early as 1623, had introduced in his book "Pinax theatri botanici" (English, "Illustrated exposition of plants") many names of genera that were later adopted by Linnaeus. - The skull is a bony structure that forms the head of the skeleton in most vertebrates. It supports the structures of the face and provides a protective cavity for the brain. The skull is composed of two parts: the cranium and the mandible. In the human these two parts are the neurocranium and the viscerocranium or facial skeleton that includes the mandible as its largest bone. The skull forms the anterior most portion of the skeleton and is a product of cephalisationhousing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In the human these sensory structures are part of the facial skeleton. - Parapapio is a genus of prehistoric baboons closely resembling the forest dwelling mangabeys . Parapapio is distinguished from other Papio by the lack of an anteorbital drop , thin browridges , absence of maxillary fossae or a sagittal crest and only slight sexual dimorphism . There are four recognized species , Pp. jonesi , Pp. whitei , Pp. broomi , and Pp. antiquus , but these taxonomic designations have generated some controversy . Traditionally , these species have been distinguished based on molar size with Pp. jonesi being the smallest and Pp. whitei the largest . However , variation in molar size in Pp. broomi overlaps the other two . Pp. jonesi is distinguished as having a more squarish muzzle than Pp. whitei but more rounded than Pp. broomi ; however these distinctions are subtle and better diagnostic criteria are needed . Some authors argue for a confused taxonomy in Parapapio but disagree with the reclassification . Since there may be no significant difference between mean tooth sizes or isotopic signatures in Pp. broomi and Pp. jonesi , these may represent a single sexually dimorphic species . However , the ranges of variation in Pp. broomi and Pp. whitei overlap and show no statistical differences based on an ANOVA run on the eleven interlandmark distances used in their analysis , and propose that the two are merely a single variable species . The sample of Pp. jonesi ( STS 565 ) differs enough in facial characteristics that it remains distinctive from other Parapapio species . - A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. - Baboons are African and Arabian Old World monkeys belonging to the genus Papio, part of the subfamily Cercopithecinae. The five species are some of the largest non-hominoid members of the primate order; only the mandrill and the drill are larger. Previously, the closely related gelada (genus "Theropithecus") and the two species (mandrill and drill) of genus "Mandrillus" were grouped in the same genus, and these Old World monkeys are still often referred to as baboons in everyday speech. They range in size and weight depending on species. The Guinea baboon is and weighs only , while the largest chacma baboon can be and weigh . After reading the paragraphs above, choose the best answer for the entity that related to 'parapapio' with the relationship of 'parent taxon'. Choices: - amniota - animal - homo - human - old world monkey - plant - sauropsida - theria
Answer:
old world monkey