Artículo
El registro de Lestodelphys Tate, 1934 (Didelphimorphia, Didelphidae) en el Pleistoceno tardío del noreste de la Provincia de Buenos Aires, Argentina
Fecha de publicación:
07/2013
Revista:
Papéis Avulsos de Zoologia.
ISSN:
0031-1049
e-ISSN:
1807-0205
Idioma:
Español
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
New records of Lestodelphys sp. (Marsupialia: Didelphimorphia: Didelphinae: Thylamyini) were found at the base of Eloisa Member, Río Luján Formation (late Pleistocene) from three sites located on the right bank of the Río Reconquista, Merlo County, northeast Buenos Aires Province (Argentina). The records of these specimens are among the northernmost for Lestodelphys from the Pleistocene of Buenos Aires Province. The material consists of four lower hemimandibles. They have a combination of features suggesting either: (1) a high morphological variability in the fossil species L. juga, in which case the current diagnosis of this taxon has to be reviewed; or (2) that the validity of L. juga must no longer be considered, as already stated by previous researchers. The occurrence of Lestodelphys is used as an environmental indicator because the current species is confined to areas of arid to semiarid conditions. The presence of the new specimens in the Pleistocene of Merlo reinforces previous paleo-environmental inferences for the levels of provenance.
Palabras clave:
Didelphoidea
,
Lestodelphys
,
Pleistocene
,
Paleoenvironment
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IANIGLA)
Articulos de INST. ARG. DE NIVOLOGIA, GLACIOLOGIA Y CS. AMBIENT
Articulos de INST. ARG. DE NIVOLOGIA, GLACIOLOGIA Y CS. AMBIENT
Citación
Martinelli, A. G.; Forasiepi, Analia Marta; Jofre G.c.; El registro de Lestodelphys Tate, 1934 (Didelphimorphia, Didelphidae) en el Pleistoceno tardío del noreste de la Provincia de Buenos Aires, Argentina; Papéis Avulsos de Zoologia.; 53; 7-2013; 151-151
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