PLATE 24 



Pentamerella missoiiriensis Branson 



Figs. 1-4. Brachial side, front and pedicle views of the holotype. 

 (Snyder Creek shale of Callaway County.) 



Camarotoechia gregeri Branson 

 Page 91. 



Figs. 5, 6 and 8. Side, pedicle and brachial views of an average specimen. 

 Figs. 7 and 9. Side and brachial views of a small specimen. 

 (Snyder Creek shale of Callaway County.) 



Pentamerella fultonensis Branson 

 Page 88. 



Figs. 10, 11, 12. Pedicle, side and brachial views of one of the cotypes. 

 (Callaway limestone of Callaway County.) 



Spirifer subvaricosus Hall and Whitfield 

 Page 101. 



Fig. 13. Back view of a specimen with an unusually high cardinal area. 

 (Mineola of Ralls County.) 



Spirifer varicosus Hall 

 Page 102. 



Figs. 14 and 15. Side and pedicle views of a small specimen. 

 (Mineola of Ralls County.) 



Camarotoechia depressa Kindle 

 Page 90. 



Fig. 16. Brachial view of the only specimen collected. 

 (Snyder Creek shale of Callaway County.) 



Spirifer annae Swallow 

 Page 99. 



Fig. 17. Pedicle view of an average specimen. 



(Snyder Creek shale of Callaway County.) 



Schuchertella arctostriata (Hall) 

 Page 83. 



Figs. 18, 19, 20. Brachial, pedicle and side views of an average specimen. 

 Fig. 21. Cardinal area of an unusually well-preserved specimen. 

 Figs. 22 and 23. Brachial and pedicle views of a flattened specimen. 

 (Snyder Creek shale of Callaway County.) 



