THE HALL OF FOSSIL VERTEBRATES 
had broad, flattened, horny bills like some gigantic duck. The 
knowledge of these strange animals has been gained chiefly from 
fragmentary specimens and has been hindered not a little by the 
—to our eyes—strange and inappropriate combinations of form. 
It is only within the last few years that complete or nearly com- 
plete skeletons have been, found, and the preparation for exhibi- 
tion of those possessed by this Museum is not yet finished. 
Malika 
RESTORATION OF THE FOUR-TOED HORSE 
Oldest known Ancestor of the Modern Horse; only 16 inches high 
Photo from original watercolor by C. R. Knight, based on mounted skeleton in 
American Museum 
The Mosasaurs, or great marine lizards, are represented by the 
skeleton on the wall of the corridor by the staircase. Three 
Ichthyosaur skeletons are placed on the opposite wall. This 
corridor will be filled ultimately with specimens of the great 
marine reptiles of the Mesozoic, or Age of Reptiles, which were in 
those times the tyrants of the sea, as the contemporary Dinosaurs 
were the giants of the land. 
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