INVESTIGADORES
FORASIEPI Analia Marta
artículos
Título:
Carnivorans at the Great American Biotic Interchange: new discoveries from the northern neotropics
Autor/es:
FORASIEPI, A.M.; SOIBELZON, L.H.; SUAREZ GOMEZ, C.; SÁNCHEZ, R; QUIROZ, L.I.; JARAMILLO, C; SANCHEZ-VILLAGRA M.
Revista:
NATURWISSENSCHAFTEN
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2014 vol. 101 p. 965 - 974
ISSN:
0028-1042
Resumen:
We report two fossil procyonids, Cyonasua sp. and
Chapalmalania sp., from the late Pliocene of Venezuela
(Vergel Member, San Gregorio Formation) and Colombia
(Ware Formation), respectively. The occurrence of these pre-
Holocene procyonids outside Argentina and in the north of
South America provides further information about the Great
American Biotic Interchange (GABI). The new specimens are
recognized in the same monophyletic group as procyonids
found in the southern part of the continent, the ?Cyonasua
group,? formed by species of Cyonasua and Chapalmalania.
The phylogenetic analysis that includes the two new findings
support the view that procyonids dispersed from North
America in two separate events (initially, previous to the first
major migration wave?GABI 1?and then within the last
major migration wave?GABI 4?). This involved reciprocal
lineage migrations from North to South America, and included
the evolution of South American endemic forms.