INVESTIGADORES
CHORNOGUBSKY CLERICI Laura
artículos
Título:
Eocene Primates of South America and the African Origins of New World Monkeys
Autor/es:
BOND, M.; TEJEDOR, M.F.; CAMPBELL, K. JR.; CHORNOGUBSKY, L.; NOVO, N.; GOIN, F. J.
Revista:
NATURE
Editorial:
NATURE PUBLISHING GROUP
Referencias:
Lugar: Londres; Año: 2015 vol. 520 p. 538 - 541
ISSN:
0028-0836
Resumen:
The platyrrhine primates, or New World monkeys, are immigrant
mammals whose fossil record comes from Tertiary and Quaternary
sediments of South America and the Caribbean Greater Antilles1,2.
The time and place of platyrrhine origins are some of the most controversial
issues in primate palaeontology, although an African
Palaeogene ancestry has been presumed by most primatologists3,4.
Until now, the oldest fossil records of New World monkeys have
come from Salla, Bolivia5,6, and date to approximately 26 million
years ago, or the Late Oligocene epoch. Here we report the discovery
of newprimates fromthe ?Late Eocene epoch ofAmazonianPeru,
which extends the fossil record of primates in South America back
approximately 10 million years. The new specimens are important
for understanding the origin and early evolution of modern platyrrhine
primates because they bear little resemblance to any extinct
or living South American primate, but they do bear striking resemblances
to Eocene African anthropoids, and our phylogenetic analysis
suggests a relationship with African taxa. The discovery of these
new primates brings the first appearance datum of caviomorph rodents
andprimates in SouthAmerica back into close correspondence,
but raises new questions about the timing and means of arrival of
these two mammalian groups.