Primate Suborders Figure 10.1: Summary of traditional primate classification.
PROSIMIANS Lemurs Lorises Tarsiers
Pygmy slow loris Nocturnal (large eyes, some lack color vision) Grooming claws
Elongated snout “dog like” (especially in lemurs)
Mouse lemur Moist noses (except for Tarsiers )
Locomotion: Vertical Clinging and Leaping Bush baby (loris)Tarsier
SUBORDER ANTHROPOID (monkeys, apes, humans) Larger body size Greater reliance on vision Complex social structures Larger, more complex brains Infraorders: PlatyrrhiniCattarrhini New World monkeysOld world monkeys Apes Humans
Monkeys (Old World and New World) True Quadrapedal locamotion (Branch walking) Tails
Infraorder Platyrrhini (New World Monkeys)
Platyrrhini Arboreal Flat nose Claw-like nails (in some)
Platyrrhini Prehensile tails (in some) Partial opposability dental formula
Infraorder Catterhini (Old world monkeys, apes, humans) dental formula: Superfamily: CercopithecoideaHominoidea Old world monkeysLesser apes Great apes Humans
Cercopithecoidea (old world monkeys) Both terrestrial and arboreal Tails, not prehensile
Cercopithecoidea Fully opposable thumbs Legs longer than arms
Hominoidea (Apes and Humans) Built for brachiation/ suspensory climbing No tails Precise opposibility Large body size Expanded Neo-cortex, increased learning Variable diet, 5Y molars Families: HylobatideaPongidaeHominidea (Lesser Apes)(Great Apes)Humans GibbonsOrangatan SiamangsGorillas Chimps Bonobos
Hylobatidae (Lesser Apes) Brachiation (suspensory climbers) No tails
Lesser Apes Arms longer than legs Arboreal
Pogidae (Great Apes) Africa: Gorillas, Chimps, Bonobos Asia: Orangatans
Locomotion: Arms longer than legs Knuckle walking Semi-upright posture
Hominidae (Humans) Bipedal stance No tails Legs longer than arms
Hominidea Social Cultural Precision grasp strong thumbs
Long postnatal dependencey Slow maturation