Alcidedorbignya is an extinct pantodont mammal known from the Early Paleocene (Tiupampan SALMA, 65.5 to 61.7 million years ago) Santa Lucia Formation (18°00′S 65°36′W / 18.0°S 65.6°W, paleocoordinates 20°42′S 52°30′W / 20.7°S 52.5°W) at Tiupampa near Mizque, Cochabamba, Bolivia. Following a naming convention established by pioneering Argentine palaeontologist Florentino Ameghino (i.e. combining the first name and surname of a prominent scientist), the genus name honours French naturalist Alcide d'Orbigny.