. Bulletin - United States National Museum. Science. OSTEOLOGY OF CARNIVGEOTJS DINOSAUES. 57 Cor Williston ' in 1901 in describing some limb material secured by him in Wyo- ming, refers to the so-called Allosaurus fore limb figured by Marsh in the following: There were two scapulae obtained that certainly show a generic distinction from Allosmnis, as I have con-sdnced mj-self from inspection of the scapula referred by Marsh to that genus, and figured by him in various places. Itremains to beseen, however, whether this scapula of Marsh indu- bitably belongs with the bones first referred by ^|^
. Bulletin - United States National Museum. Science. OSTEOLOGY OF CARNIVGEOTJS DINOSAUES. 57 Cor Williston ' in 1901 in describing some limb material secured by him in Wyo- ming, refers to the so-called Allosaurus fore limb figured by Marsh in the following: There were two scapulae obtained that certainly show a generic distinction from Allosmnis, as I have con-sdnced mj-self from inspection of the scapula referred by Marsh to that genus, and figured by him in various places. Itremains to beseen, however, whether this scapula of Marsh indu- bitably belongs with the bones first referred by ^|^ ^^ him to Allosaurus. I do not think there is conclusive evidence of this. The facts regarding this scapula as presented on a preceding page bears out Doctor Williston's contention. The Umb described and figured by Williston undoubtedly belongs to the genus Antrodemus. Its close resem- blance may be clearly seen by com- paring his illustration with figure 40. Scapula (Sc.)—Both scapulae are preserved with the present specimen, the right being perfect, as shown in plate 5, figure 2, with the exception of a small portion of the upper ante- rior corner of the blade, which is missing. The left scapula was in- jured in life, and subsequent healing produced the deformation shown in plate 5, figure 1. This pathologic condition caused a widening of the blade that would be entirely mislead- ing as to its true form had not the opposite scapula been present. The scapula of Antrodemus is distinctive on account of its bird like form as has previously been pointed out by Wil- liston.^ The shaft is exceptionally long and slender, being nearly of equal width throughout, except the upper- most or distal extremity which is per- ceptibly widened. This expansion is about equal in fore and aft direc- tion. The upper third is flattened and thin, while more proximally the shaft is trihedral in cross section, the anterior border being sharp, the posterior one rounded. Longitudinally the exter- nal s
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