From Eocene to Recent Time 



249 



over land surfaces, they were covered and quickly dried as 

 in ordinary herbarium process. 



Three very similar deposits to the above are those 

 described by Dunker {1S4: 155) from Giinzburg, and by 

 Meyer {18^:'^^) from Unterkirchberg near Ulm, and 

 from Aix in France. The fauna in all of these bears a 

 strong resemblance to that described above, while the fishes 



Fig. 40. Prolebias ceplialotes, a freshwater Oligocene fish, 

 shoals of which cover rock-slabs at Alx-en-Provence. Natural 

 size. (From Haug) . 



were equally abundant. Figure 40 is reproduced from a 

 rock slab studied by Haug, and it strikingly illustrates great 

 and sudden destruction of fish-life. Meyer clearly states that 

 these were wholly inhabitants of freshwater. And he adds: 



