3 Free Artworks of Sarmiento Formation

charles r. knight1913 in paleontologya history of land mammals in the western hemisphere (1913)
Stegotherium tesselatum, 1913
charles r. knightstegotherium
Protypotherium australe 1, 1913
charles r. knightprotypotherium
Interatherium robustum, 1913
charles r. knightinteratherium
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