Buscar
Mostrando ítems 121-130 de 883
Late Aptian angiosperm pollen grains from Patagonia: earliest steps in flowering plant evolution at middle latitudes in southern South America
(Elsevier, 2015-08)
The angiosperm pollen record from the Anfiteatro de Ticó and Punta del Barco formations (Baqueró Group) is reported. The relevance of these floras is that they are accurately dated as late Aptian, and one of the oldest ...
New records of birds from the Santa Cruz Formation (Early-Middle Miocene) at the Río Santa Cruz Valley, Patagonia, ArgentinaNuevos registros de aves de la formación santa cruz (Mioceno temprano-medio) en el Valle de Río Santa Cruz, Patagonia, Argentina
(Asociación Paleontológica Argentina, 2019-09)
The Santa Cruz Formation constitutes one of the most representative units of the late Early Miocene of South America for its abundant and rich fossil record of vertebrates. The diversity of extinct birds is known so far ...
Incursion of tropically-distributed plant taxa into high latitudes during the middle Eocene warming event: Evidence from the Río Turbio Fm, Santa Cruz, Argentina
(Elsevier Science, 2021-08)
Plant species with predominantly tropical and subtropical modern distributions (or meso-megathermal species) penetrated into the highest southern latitudes of the American continent during the global warmest periods of the ...
La antigüedad de la ocupación humana en el centro-oeste del Chubut: nuevos datos del valle del GenoaThe antiquity of human occupation in central-west Chubut: new data from the Genoa valley
(Instituto de Arqueología, Facultad de Filosofía y Letras, Universidad de Buenos Aires, 2017)
Holocene stability and recent dramatic changes in micromammalian communities of northwestern Patagonia
(Elsevier, 2013-08)
Micromammalian fossil sequences of two classical archaeological sites, Cueva Traful I (CTI) and Cueva Epullán Grande (LL), both in the province of Neuquén, northwestern Patagonia, Argentina, were studied. These sequences ...
Explotación de sílex rojo en Bahía del oso marino (Patagonia Argentina)Red chert expoitation in oso marino bay, Patagonia Argentina
(Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Sociales, 2019-09-13)
En este trabajo se presenta información sobre la explotación prehistórica de una variedad de sílex rojo en función del aprovechamiento de una fuente primaria de aprovisionamiento lítico denominada Punta Norte, emplazada ...
Geochronologic evidence of a large magmatic province in northern Patagonia encompassing the Permian-Triassic boundary
(Pergamon-Elsevier Science Ltd, 2018-03)
The Los Menucos Complex (northern Patagonia) consists of ∼6 km thick succession of acidic and intermediate volcanic and pyroclastic products, which has been traditionally assigned to the Middle/Late Triassic. New U/Pb ...