PLATE 5 

 Clypeina 



Figs, i, 3. Clypeina (" Eoclypeina") sp., thin-sections of debris, X40. Permian, basal 

 Satina Formation and top Zinnar Formation respectively ; Harur, Mosul Liwa, Iraq. V. 41598, 

 V. 52048. 



Fig. 2. Clypeina sp., slightly oblique-transverse section of verticil, X30. Palaeocene ; 

 Ghurra Beds, Umm er Radhama Formation ; Al Ghurra, Diwaniya Liwa, Iraq. V. 52047. 



Fig. 4. Clypeina lucasi Emberger, oblique-transverse section of verticil, X28. Cretaceous. 

 Valanginian ; Hugf area, Southern Oman, Arabia. V. 52042. 



Figs. 5, 6. Clypeina parvula Carozzi, thin-sections showing random transverse and frag- 

 mentary longitudinal sections, x6o. Cretaceous, Valanginian, Garagu Formation ; subsurface, 

 Kirkuk Well No. 116, Iraq. V. 52049, V. 52050. 



