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Charles R. Knight The Largest of the Titanotheres, Brontotherium Etching Prints & Graphic Art 15 x 21 in Realized Price Auction Venue/Sale Sale Date ...
Osborn, H. F. 1929. U.S.Geol.Survey Mon. 1 (n.55): 110, 115,234,542,553,555,557,558,559,561,t.f.198,199,3 72,399,403,405,457,458,461,v.2,pl.clxi,clxii,clxiii. Harksen ...
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