Ceboidea
Ceboidea (New World monkeys; order Primates, suborder Simiiformes) A superfamily that comprises the families Callitrichidae and Cebidae. Isolated, probably since the Eocene, the ceboids show certain differences from the Old World monkeys. Their noses are flat, the nostrils facing laterally (platyrrhine) due to ceboids' possession of a larger nasal apparatus than Old World forms. Facial vibrissae are present but are usually small. The tympanic bone forms a ring fused with the petrosal and the bulla is large. The second premolar tooth is retained. Social organization is elaborate. Communication is mainly vocal, in some genera (e.g. Alouatta) incorporating distinct sounds each of which has a precise meaning. All species are fully arboreal, some possessing prehensile tails with ridged tail pads used as tactile sense organs and linked to a large area in the cerebral cortex, but the thumb is not fully opposable in any species.
More From encyclopedia.com
Old World Warblers , Sylviidae (Old World warblers, cisticolas, prinias; class Aves, order Passeriformes) A family of small birds which have brown, grey, or greenish plum… Cichlid , Cichlidae (cichlids; subclass Actinopterygii, order Perciformes) A very large family of freshwater fish, many of which are rather deep-bodied. They h… Reproductive Isolating Mechanism , reproductive isolating mechanism (RIM) The means by which different species are kept reproductively isolated. These may be: (a) chromosomal (if cross… Sibling Species , sibling species Species that are identical in outward appearance or very nearly so. Despite the similarity, however, they qualify as species by being… Treponema , Treponema (family Spirochaetaceae, order Spirochaetales) A genus of flexible, spirally shaped bacteria which are anaerobic or micro-aerophilic chemo-… Monkey , monkey, any of a large and varied group of mammals of the primate order. The term monkey includes all primates that do not belong to the categories h…
You Might Also Like
NEARBY TERMS
Ceboidea