PLATE XXXVI. 



Jurense-zone (Dispansum-beds). 



Figs. 1 — 2. — Gkammoceras metallaeium (Dmnortier). 



Fig. 1. — Side view of a specimen with test preserved. Buckholt Wood. My 

 Collection. (Page 210.) 



Fig. 2. — Front view of the same. 



Figs. 3 — 5. — Geammoceras subquadratum, 8. Buckman. 



Fig. 3. — Side view of a well-preserved specimen. Cam Down. My Collection. 

 (Page 202.) 



Fig. 4. — Back view of the same. 

 Fig. 6. — Half-section of whorls. 



Figs. 6 — 8. — Geammoceras Sjjmanni (Dumortier), var. a. 



Fig. 6. — Side view of a specimen with most of its test preserved. The ribs 

 run down the inner margin. Coaley Wood. My Collection. (Page 203.) 

 Fig. 7. — Front view of the same. 

 Fig. 8. — Half-section of whorls. 



