CASE— COTYLOSAURIA 





rjS^r^ 



1. Upper view of skull of Diadectes sp. X %. No. 4352 Am. Mus. 



2. Lower jaw of D. phaseolinus. X %. No. 4684 Am. Mus. 



3. Seven dorsal and sacral vertebrae of Diadectes sp. showing hypfjsphene 



and hypantrum articulation. X 9io. No. 4354 Am. Mus. 



