PLATE 6 

 Monobolina plumbea (Salter) (p. 38) 



Mytton Flags, near Blakemoorflat, Shropshire. 

 Fig. 1. BB 35471. Latex cast of the internal mould of a pedicle valve, x 2-6. 



Paterula cf. bohemica Barrande (p. 40) 



Hope Shales, Hope Dingle, Shropshire. 



Figs. 2, 3. BB 35588a, b. Latex cast of the exterior and the internal mould of a pedicle 

 valve, xii. 



Figs. 5, 4. BB 35589a, b. Latex cast of the exterior and the internal mould of a brachial 

 valve, x 11-9. 



Meadowtown Beds, Minicop Farm, Shropshire. 



Fig. 6. BB 35590. Exterior of a pedicle valve, x 6. 



Fig. 7. BB 35591. Exterior of a brachial valve, xn-i. 



Fig. 8. BB 35592. Exterior of a pedicle valve, xn-g. 



Fig. 9. BB 35593. Exterior of a pedicle valve, xn-g. 



Fig. 10. BB 35594. Exterior of a brachial valve, x 12-1. 



Fig. 11. BB 35595. Exterior of a brachial valve, x 10. 



Paterula cf. perfecta Cooper (p. 41) 



Spy Wood Grit, Spy Wood Dingle, Shropshire. 

 Fig. 12. BB 35597. Exterior of a brachial valve, x 11. 

 Fig. 13. BB 35596. Exterior of a pedicle valve, xii-5- 



Apsotreta sp. (p. 42) 



Mytton Flags, near Wood House, Shropshire. 

 Figs. 14, 15. BB 35565a. Ventral and lateral views of the internal mould of a pedicle valve, 

 X7. X5. 



Conotreta stapeleyensis sp. nov. (p. 43) 



Stapeley Shales, Leigh Hall, Shropshire. 



Fig. 16. Holotype, BB 35566. Internal mould of a pedicle valve, x 7. 



Fig. 17. Paratype, BB 35568. Internal mould of a brachial valve, X57. 



Figs. 18, 19. Paratype, BB 35569. Latex cast of the interior and the internal mould of a 

 brachial valve, x 7, x 6. 



Fig. 20. Paratype, BB 35570. Internal mould of a brachial valve with adherent shell 

 posteriorly, x 6. 



Fig. 21. Paratype, BB 35571b. Latex cast of the exterior of a pedicle valve, X 5-7. 



Schizocrania salopiensis sp. nov. (p. 44) 



Rorrington Beds, near Desert, Shropshire. 

 Fig. 22. Paratype, BB 35361. Exterior of a brachial valve, x 7-1. 

 Fig. 23. Paratype, BB 35362a. Internal mould of a brachial valve, X 4. 



Spy Wood Grit, near Rorrington, Shropshire. 

 Fig. 24. Paratype, BB 35359. Exterior of a brachial valve, x 3-5. 

 Fig. 25. Holotype, BB 35358a. Internal mould of a brachial valve, x 2-2. 



Betton Beds, near Little Weston, Shropshire. 

 Fig. 26. Paratype, BB 35404a. Internal mould of a brachial valve, x 7. 



