Figs 20-24 Pseudovascoceras nigeriense (Woods). Pindiga Formation, unit O, Ashaka. Fig. 20a, b, C.93375, x0.75. Fig. 21, b, C.93374, x1. Fig. 22, 
C.93305, x0.75. Fig. 23a, b, C.93371, x0.75. Fig. 24a, b, C.93306, x0.75. 
