†Ideodelphys microscopicus Ameghino 1902 (marsupial)
PaleoDB taxon number: 315849
Full reference: F. Ameghino. 1902. Notices préliminaires sur des mammifères nouveaux des terrains Crétacé de Patagonie {preliminary notes on new mammals from the Cretaceous terrains of Patagonia]. Boletin de la Academia Nacional de Ciencias de Córdoba 17:5-70
Belongs to Marsupialia according to L. Marshall 1982
Sister taxa: Didelphidae, Marsupicarnivora, Leptodactyla, Macrotarsi
Type specimen: MACN 10344, a mandible (lower jaw, no teeth). Its type locality is Barranca south of Lago Colhue-Huapi, Gran Barranca, which is in an Eocene terrestrial claystone in the Sarmiento Formation of Argentina.
Ecology: scansorial omnivore