Sciamys Ameghino, 1887

Included species. Sciamys principalis Ameghino, 1887, Santacrucian; Sciamys varians Ameghino, 1887, Santacrucian; Sciamys robustus Ameghino, 1894, Santacrucian; Sciamys rostratus Scott, 1905, Santacrucian; Sciamys latidens Scott, 1905, Santacrucian.