INVESTIGADORES
CARLINI Alfredo Armando
artículos
Título:
The Tropics as Reservoir of Otherwise Extinct Mammals: The Case of Rodents from a New Pliocene Faunal Assemblage from Northern Venezuela.
Autor/es:
VUCETICH MG; CARLINI A.A.; AGUILERA O.; SÁNCHEZ-VILLAGRA M.
Revista:
JOURNAL OF MAMMALIAN EVOLUTION
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2010 vol. 17 p. 265 - 273
ISSN:
1064-7554
Resumen:
We report a new vertebrate assemblage from the
Pliocene Vergel Member of the San Gregorio Formation in
northwestern Venezuela, which includes Crocodylia and
Testudines indet., toxodonts, at least four species of
xenarthrans of the Dasypodidae, Pampatheriidae, Glyptodontidae
and Megatheriidae, and rodents. The last are
Cardiatherium, cf. Caviodon (Hydrochoeridae), Neoepiblema
(Neoepiblemidae), and what is here described as a
new genus of a low-crowned octodontoid. cf. Caviodon is
the first cardiomyine for northern South America. The
rodent assemblage resembles in its ecological composition
those of the late Miocene (Huayquerian) from the Mesopotamian
of Argentina and the Acre region in Brazil, with
partially overlapping systematic composition. The stratigraphic
position of the San Gregorio Formation and
mammals other than caviomorphs suggest a late Pliocene
age for these sediments, implying the endurance of rodent
taxa beyond their biochron in southern South America.
