Plate I. 



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DAEMONELIX TUBULES. 



A Daemonelix tubule, found growing on a tibia (Rhinoceros). 

 Daemouelix tubules in sand rock. 



Jaw partly grown over with Daemonelix tubules. (Section of, 

 see Fig. 8). Length of jaw, 25 cm. 

 Fig. 4. Scapula from Daemonelix Beds partly grown over with Dae- 

 monelix tubules. 

 Femur (Rhinoceros) grown over with Daemonelix tubules. 

 Toe bone (Rhinoceros) etched by Daemonelix tubules. 

 Thoracic vertebra (Rhinoceros) etched by Daemonelix tubles. 



Greatly reduced. 

 Microscopic section of tubule from Fig. 3. Centimeter scale 



applies to Figs. 1, 2, 3, 4, 5, 6. 

 From Specimens in the Morrill Geological Collections, State University.] 



Fig. 1. 

 Fig. 2. 

 Fig. 3. 



Fig. 5. 



Fig. 6. 



Fig. 7. 



Fig. 8. 



