EXTINCT ANIMALS 



found in the stratified deposits. This one (Fig. 

 29) is from stratified rock which forms the hills 

 round Paris, the calcareous rocks of Mont- 

 martre. 



Next let us see what fine mud will do in 



' •' ' i k.amiti uMii^imi'^^' 



Fig. 29. — Skeleton of a tapii'-like animal (Palteotheriimi) as 

 found embedded in calcareous rock at Montmartre, Paris, 



preserving the impression of delicate structures, 

 such as the wings of insects. Here are the 

 wings of a dragon fly (Fig. 30), preserved in very 

 ancient stratified rock, the Carboniferous. 

 Here (Fig. 31) are the wings of the Pterodactyle 



46 



