Hylononius laiidens Dawson. Skull, portion of skeleton, foot, scapula, 

 sternal bones, humerus, and rib, believed to belong to this species. Erect 

 tree, Coal formation. Nova Scotia. Nearly natural size. Photograph 

 by Dawson, published through the courtesy of Dr. Arthur Willey. 

 Original in the Peter Redpath Museum of McGill I'niversity. 



