INDEX 



247 



staurota, 203*, 204; PI. 21, figs. 6-7; PI. 



23. fig- 4 

 tetracantha, 204 

 tomaszowensis, 204 



Neale, J. W., 9, 18, 73 

 Nematosphaeropsis, 222 



balcombiana, 222 

 Netrelytron, 199 



jurassicum, 201 



stegastum, 199 



trinetron, 199, 200*, 201; PI. 22, fig. 3 

 Norris, G., 17 



Odontochitina, 208 



operculata, 208; PI. 21, fig. 2 

 Oligosphaeridium, 55, 70, 71 



albertense, 77 



anthophovum, 77 



asterigerum, 77 



coelenteratum, 77 



complex, 71, 72*, 73, 74; PI. 7, figs. 1, 2, PI. 



10, fig. 3 

 dictyophorum, 77 

 dispare, 77 

 irregulare, 77 



macrotubulum , 75; PI. 9, fig. 4 

 paradoxum, 77 

 perforatum, 77 



prolixispinosum, 76, 77; PI. 8, figs. 2, 3 

 pulcherrimum, 75, 76; PI. 10, fig. 9, PI. 11, 



fig- 5 

 reniforme , 77 



retieulatum, 74; PI. 7, fig. 10 

 vasiformum, 11*, 74, 75; PI. 9, fig. 7, PI. 10, 



fig. 1 



Paranetrelytron, 201 



strongylum, 201, 202;* PI. 21, fig. 5, 

 PI. 23, fig. 5 

 Pareodinia, 211 



aphelia, 211 



ceratopkora, 211, 212; PI. 23, fig. 2 

 Pastiels, A., 92, 158 

 Perisseiasphaeridium, 55, 78 



eisenacki, 79 



pannosum, 78*, 79; PI. 3, fig. 5, PI. 11, 

 fig. 8 

 Pluriarvalium, 109, 154 



osmingtonense, 154, 155*, 156 



Polysphaeridium, 55, 91, 92 



asperum, 95 



deflandrei , 95 



elegantulum , 95 



fabium, 95 



fluctuans, 95 



follium, 95 



fucosum, 95 



laminaspinosum, 94, 95; PI. 8, fig. 8 



major, 95 



marsupium, 95 



pastielsi, 92, 93; PI. 4, fig. 10 



paulinae, 95 



perovatum, 95 



polypes, 95 



pumilum, 93, 94; PI. 7, figs. 3, 4 



rhabdophorum, 95 



simplex, 95 



subtile, 92; PI. 11, fig. 1 



tribrachiosum, 95 



zoharyi, 95 

 Prolixosphaeridium, 157, 171 



deirense, 171*, 172; PI. 3, fig. 2 



granulosum, 172 



mixtispinosum, 173 



parvispinum, 173 



xanthiopyxides, 173 

 Proximate cysts, 14 

 Proximochorate cysts, 15 

 Pritchard, A., 158 

 Psaligonyaulax, 136, 



apaletum, 138 



deflandrei, 137*, 138; PI. 14, figs. 6, 7 



simplicia, 138 

 Pterate cysts, 16 



Pterocavate cysts, 16 



Raphidodinium, 109, 136 



fucatum, 146 

 Reade, Rev. J. B., 19, 28, 64 

 Reinsch, P. F., 28 

 Rhaetogonyaulax, 152, 153 



chaloneri, 153 



rhaetica, 153 

 Rhynchodiniopsis, 109, 140 



aptiana, 140 

 Rottnestia, 139 



Sarjeant, W. A. S., 9, 10-17, 18—20, 54, 73, 



107-175, 199-214 

 Sheppey, Kent, 23, 27 

 Sirmiodinium , 212 



grossi 212; PI. 22, fig. 7 



