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Laventiana

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Kingdom  Animalia
Class  Mammalia
Family  Cebidae
Phylum  Chordata
Order  Primates
Genus  Laventiana Rosenberg, 1991
Similar  Dolichocebus, Soriacebus, Tremacebus, Homunculus patagonicus, Jamaican monkey

Laventiana annectens is a previously unidentified middle Miocene primate from the La Venta deposits of Colombia. It is intermediate between squirrel monkeys (Saimiri) and callitrichines (marmosets and tamarins) in the morphology of the lower molars, mandible, and talus. Laventiana annectens is closely related to Saimiri and to Cebus (capuchin monkeys) yet resembles the probable callitrichine morphotype, demonstrating that archaic relatives of a Saimiri-like stock were suitable structural ancestors for the enigmatic callitrichines. Laventiana is also more primitive than Saimiri (Neosaimiri) fieldsi from the same fauna, further increasing the likelihood that the latter is a lineal ancestor of modern squirrel monkeys.

References

Laventiana Wikipedia


Similar Topics
Dolichocebus
Homunculus patagonicus
Jamaican monkey
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