TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 477 



43584. Pachydictya foliata Ulrich. Cotypes and figured sections. 

 Stones River (Ord.). St. Paul, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 149, pi. 9, figs. 1-5; pi. 10, figs. 5-10. 



43784. Pachydictya gigantea Ulrich. Figured sections of cotype. 



Richmond (Ord.). "Wilmington, Illinois. 



Ulrich, Geol. Surv. 111.. VIII, 1890, p. 524, pi. 31, figs. 3b-3e. 



43473. Pachydictya hexagonalis Ulrich. Figured sections and frag- 

 ment of holotype. 

 Richmond (Ord.). Stony Mountain, Manitoba. 



Ulrich, Geol. Surv. Canada, Contr. Micro-Pal., Cambro-Sil., Pt. 



II, 1889, p. 42, pi. 9, figS. 2-2C 



43582. Pachydictya occidentalis Ulrich. Cotypes and figured 



sections. 

 Black River (Ord.). St. Paul, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 151, pi. 8, figs. 20-27; pi. 9, figs. 6-10. 



43702. Pachydictya pumila Ulrich. Cotypes. 



Trenton (Ord.). Cannon Falls, Minnesota. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XII, 1890, p. 186, figs. 



II, na-d; Geol. and Nat. Hist. Surv. Minn., Final Rept., 



III, Pt. I, 1893, p. 157, pi. 8, figs. 4, 5; pi. 10, figs. 1-4. 



See Rhinidictya humilis. 



435S5. Pachydictya pumila sublata Ulrich. Cotypes. 



Trenton (Ord.). Cannon Falls, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1893, p. 158. 



43701. Pachydictya robusta Ulrich. Cotypes and figured sections. 

 Sevier (Ord.). Near Knoxville, Tennessee. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., V, 1882, p. 173, pi. 8, 

 figs. 10, ioa-c. 



43785. Pachydictya splendens Ulrich. Figured section of cotype. 



Richmond (Ord.). Wilmington, Illinois. 



Ulrich, Geol. Surv. 111., VIII, 1890, p. 523, pi. 32, fig. ib. 



43703. Pachydictya triserialis Ulrich. Cotypes and figured sections. 



Trenton (Ord.). Montreal, Canada. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XII, 1890, p. 187, 

 figs, ia, i2a-c; Geol. and Nat. Hist. Surv. Minn., Final 

 Rept., Ill, Pt. I, 1893, p. 159, pi. 10, figs. 11-14. 



41824. Pachydomella tumida Ulrich. Holotype. 



Onondaga (Dev- ). Falls of the Ohio. 



Ulrich, Journ. Cincinnati Soc. Nat. Hist., XIII, 1S90, p. 198, 

 pi. 13, figs. 5a-c. 



