TERTIARY AGE. 



499 



Arundo, Carex, Cyperites, Cyperus, and Poacites. Of the species, Arundo Gctpperti 

 A. Brngt., Sallx anyusta A. Brngt., Platanus Gulielmos Gopp., Juglans Schimperi Lsqx., 

 /. denticulata Heer, are reported as occurring also in the Lignitic series. 



2. Animals. 

 1. Invertebrates. — Among Protozoans, Rhizopods are very num- 

 erous in some of the beds, as in the Ashley Eocene, in South 



Figs. 889-893. 



Eocene, Claiborne Group. — Fig. 889, Ostrea Fellseformis ; 890, Crassatella alta ; 891, Astarte 

 Conradi ; 892, Cardita planicosta ; 893, Turritelia carinata. 



Figs. 894-900. 



Eocene, Vicksburg Group. — Fig. 894, Pecten Poulsoni ; a, section of same ; 895, Mortonia Rog- 

 erM; 896, Ostrea Georgiana ( X %.)\ 897, Anomalocardia Mississippiensis i 898, Orbitoides Man- 

 telli ; 899, Cithara Mississippiensis ; 900, Dentalium Missusippiense. 



