 Designated the holotype specimen, it was added to the Bernardino Rivadavia Natural Sciences Museum along with a large portion of Ameghino's fossil collections.In his paper, Ameghino erected the family Cruschedulidae, however in his 1906 paper "Enumeracion de los Impennes Fosiles de Patagonia y de la Isla Seymour" he synonymized the family into Cladornithidae.When described Ameghino envisioned the genus and the family Cladornithidae as a whole to have represented a group of extinct "dry-land" penguins.