PLATE XII. 



PAOK 



Fig. 11. Septum of Ammonites Traskii. 63 



Fig. 12 h. Septum of A. ramosus. 65 



The dorsal lobe was obliterated by weathering. 



Fig. 13 h. Septum of A. Hoffmannii. 65 



Fig. 14. A. Remondh. 66 



Coarsely eostate variety. 



Fig. 15. A. Remondii. 66 



Nodose variety. 



