EXPLANATION OF PLATE XXVI. 
The upper figure gives a view of the left side of the skull (A. M. N. H., No. 969). <A 
very large proportion of the superficies is artificial, and the margins of the antorbital vacuity 
are wholly artificial and do not conform to the outline of the type described by Professor Marsh 
(U.S. N. M., No. 2673). The quadrate bone at the proximal end has been broken, and appears 
in the restoration to show as two separate bones. The articulation of the quadrate with the 
quadratojugal does not agree with that shown in Marsh’s type (U.S. N. M., No. 2673), and is 
artificial, The anterior portions of the maxillaries and premaxillarles, being largely artificial, 
fail to show the characteristic foramina of this region of the skull. 
The lower figure gives a hind view of the same skull (A. M. N. H., No. 969). 
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