2G1 



Trionvx iialopiiili's, Cope. 



l^ioci;riliii^cs of tlin Academy of Natural Sciences, 18C9, p. Vi ; Extinct Uutrachia and Kcptilia 

 of North America, 1670, p. 151, Plate VII, lix- 15. 



GicensaiKl, No. 4, of Delaware and New Jersey. 

 PLASTOMENUS, Cope. 



Annual IJeport of the United States Geological Survey of Montana, Wyoming, otc, 1872, p. G17. 



Plastomenus coalescens, Cope. Plate VIII, figs. 6, 7. 



Siijira, !>. 93. 



Fort Union epoch of Milk River, Saskatchewan, British North America. 

 Plastomenus costatus, Cope. Plate VIII, fig. 8. 



Supra, p. 94. 



Fort Union epoch of Milk River, Saskatchewan, British North America. 

 Plastomenus insignis. Cope. Plate VI, fig. 10. 



Haydeu's Bulletin of the United States Geological Survey, No. 2, 1871, p. '.i'J. 



Fort Union epoch of Colorado. 

 Plastomenus punctulatus, Cope. Plate VI, fig. 9. 



Haydeu's Bulletin of tljo United States Geological Survey, 187'l,i). 29. 



Fort Union epoch of Colorado and Nebraska. 



COMPSEMYS, Leidy, Cope. 



Siqini, p. 91. 

 CoMPSEMYS OGMIUS, Cope. 



Supra, 1). 91. 



Fort Union epoch of Milk River, British North America. 

 Compsemys victus, Leidy. Plate VI, figs. 15, 16. 



Pi'occcdings of the Academy of Natural Sciences, Philadelphia, lS5(i, p. IU2 ; Transactions 

 of tl'.e Americau Philosophical Society, 1800, p. 152, Plate XI, fig. 557. 



Fort Union epoch of Nebraska, Colorado, and ?Milk Rivur. British Nortli 

 America. 



Compsemys obscukus, Leidy 



Emi/s obscm-us, Leidy, Pic 

 ohscurus. Cope, Exti 



Fort Union epoch of Lon^' Lake, Nebraska. 



Emi/s ohscurus, Leidy, Proceedings of the Academy of riiiladeliihia, 185G, 312. — Comj)scmij8 

 oiscHriis, Cope, Extiuct Batracliia and Keplilia of North America, 1870, 121. 



