UNA NUEVA ESPECIE DE LUTREOLINA THOMAS, 1910 (MARSUPIALIA, DIDELPHIDAE) DEL PLEISTOCENO TEMPRANO DE LA PAMPA AUSTRAL (PROVINCIA DE BUENOS AIRES, ARGENTINA)

نویسندگان

چکیده

We describe Lutreolina tonnii sp. nov. (Mammalia, Metatheria, Marsupialia, Didelphimorphia, Didelphidae), recovered from Early (or Early–Middle) Pleistocene deposits of the coastal cliffs near Necochea City in Buenos Aires Province, Argentina. Its holotype, a right maxillary with M1-3, indicates that it belongs to largest species genus, including extinct and extant species. It also differs other genus having more anteroposteriorly compressed protocones upper molars. living maxillary-jugal contact is less horizontal its posterior two-thirds, has deeper ectoflexus M3, shallow but distinct internal (lingual) crest linking bases stylar cusps B D M1-3. The new fourth known up now for South American record, third Plio–Pleistocene Pampean Region, thus suggesting considerable diversity this mid-latitudes continent by end Cenozoic Era.

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ژورنال

عنوان ژورنال: Publicación electrónica de la Asociación Paleontológica Argentina.

سال: 2023

ISSN: ['2469-0228']

DOI: https://doi.org/10.5710/peapa.24.10.2022.435