PLATE V. 



Eremopteris missouriensts Ls. 



(Page 16.) 



Fill. 1. Fragment with distant slender pinnules. U. S. Nat. Mus., 5670. 



2. Segment showing small pinn:f and pinnules. U. S. Nat. Mus., 5681. 

 2a. Piuua of the same specimen enlarged x2. . 



3. Fragment of segment with very large pinnules. U. S. Nat. Mus., 5659. 



3a. Enlarged piunule of the same to show characteristic surface and dentitioa. 



Eremopteris BILOBATA D. W. 



(Page 19.) 



Fig 4. Small pinna and pinnules. U. S. Nat. Mus., 5700. 



5. Fragment of compound pinna. U. S. Nat. Mns., 6036. 



5n. Enlarged pinnie of the same, showing epidermal striato-rugosity. x2. 



6. Fragment with large pinnules. U. S. Nat. Mus., 5701. 



6a. Enlarged detail of two pinnules from the same specimen. x2. 



320 



