830 SYSTEMATIC SYNOPSIS OF FOSSIL BIBDS. 



" In its main features, the present specimen resembles the skull of the BaUtes, more than 

 that of any existing birds. Other parts of the skeleton wiU doubtless show stUl stronger 

 reptilian characters. 



" In the matrix attached to this skull, a single tooth was found, which most resembles the 

 teeth of birds, especially those of lehthyornis. It is probable that Laopteryx possessed teeth, 

 and also biconcave vertebrae. 



" The specimen here described, and others apparently of the same species, were found in 

 the upper Jurassic of Wyoming Territory, in the horizon of the Atlantosaurus beds." 



