Luantus is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.
Distribution Endemic to Argentina were the species Luantus initialis, Luantus propheticus, and Luantus toldensis. Luantus sompallwei inhabited Chile exclusively, while Luantus minor is known from both Argentina and Chile. Luantus silbamanta was endemic to Peru.
References