PLIOCENE 



521 



marked by the continued disappearance of the characteristically 

 tropical plants and by an approximation to the modern European 

 flora. Many trees persisted, however, which are no longer native 

 to that continent, but are still found in eastern Asia or in North 

 America, such as Tulip Trees, Magnolias, Sequoias, etc. 



Plate XII. Tertiary Fossils from Florida 



1. Marginella aurora, 3/4, Miocene. 2. Nassa bidentata, 3/4, Miocene and 

 Pliocene. 3. Murex Conradi, 2/3, Miocene. 4. Natica floridana, 1/2, Miocene. 

 5. Mitra Wilcoxi, 1/2, Miocene. 6. Fasciolaria tulipa, 1/2, Pliocene. 7. Typhis 

 floridana, Pliocene. 8. Turbo rectogrammicus, 1/2, Pliocene, (After Dall.) 



Marine Invertebrates are nearly identical with modern forms, 

 and the great majority of Pliocene species of shells are still living. 



The Mammals are still somewhat behind their modern succes- 

 sors, though much more advanced than their predecessors. Those 



