Producción CyT
Artículo
Autoría
Tarquini, J
;
Vilchez Barral, M.G.
;
SOIBELZON, LEOPOLDO HECTOR
Fecha
2016
Editorial y Lugar de Edición
Museo Argentino de Ciencias naturales "Bernardino Rivadavia"
Revista
Contribuciones del MACN
(pp. 359-365)
Museo Argentino de Ciencias naturales "Bernardino Rivadavia"
Resumen
Información suministrada por el agente en
SIGEVA
FamilyProcyonidae (Mammalia, Carnivora) are represented in South America by fiveliving genera (Bassaricyon, Nasuella, Potos, Procyon and Nasua). Of these only Procyon and Nasua are present in fossil records (Late Pleistocene - Holocene)in Argentina, Brazil and Bolivia. Recent South American procyonids represent asecond invasion from North or Central America during the LatestPleistocene?Holocene and they are not directly related to the endemic andextinct procyonids genera ?Cyonasua and?Chapalmal...
FamilyProcyonidae (Mammalia, Carnivora) are represented in South America by fiveliving genera (Bassaricyon, Nasuella, Potos, Procyon and Nasua). Of these only Procyon and Nasua are present in fossil records (Late Pleistocene - Holocene)in Argentina, Brazil and Bolivia. Recent South American procyonids represent asecond invasion from North or Central America during the LatestPleistocene?Holocene and they are not directly related to the endemic andextinct procyonids genera ?Cyonasua and?Chapalmalania. These last would becorresponding to a first episode of migration (in the context of Proto GABI) recorded in Argentina from the Late Miocene toEarly Pleistocene, and Venezuela, Colombia and probably Peru during the Late Pliocene.Paleobiologystudies suggest that extinct taxa differ in some features ascranial and dental anatomy and body mass. Despite both present teeth morphologyadapted to omnivorous diet, ?Cyonasuawould have had a major carnivorous diet and ?Chapalmalania scavenger habits. ?Cyonasua species are relatively larger body sized than extant procyonids (13 to 25 Kg; being double or tripleto that extant ones); whereas, ?Chapalmalania would have been much higher. Studies from substratepreferences and locomotorhabit infer terrestrial with possibly some climbing abilities for ?Cyonasua.
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Palabras Clave
ProcyonidaePaleoecologíaEvoluciónfossil