6 Free Artworks of Río Frías Formation

a history of land mammals in the western hemisphere (1913)charles r. knight1913 in paleontologycerro bandera formationchichinales formationmetatheria life restorations
Protypotherium australe, 1913
charles r. knightprotypotherium
Theosodon, 1913
charles r. knighttheosodon
Cladosictis, 1913
cladosictispachyrukhos
Prothylacinus, 1913
prothylacinusinteratherium
Adinotherium ovinum, 1913
a history of land mammals in the western hemisphere (1913)adinotherium
Nesodon, 1913
nesodon life restorationscharles r. knight
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