Palaeoneilo magnifica Clarke 



(See plate 14) 



Fig. I Exterior of left valve 



2 Sculpture cast of conjoined valves 

 Locality: Ponta Grossa, Brazil 



Palaeoneilo sculptilis Clarke 



Fig. 3 A weathered right valve showing the radial ornament. 

 From the Upper Devonic shale of Erere, Para, associ- 

 ated with Schizobolus truncatus and N u - 

 culites parai 



Palaeoneilo sancticrucis Clarke 



Fig. 4, 5 Right valves of this species 



Locality: Ponta Grossa, Brazil 



170 



