TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 37 



3S1. Ammonites complexus Hall and Meek. Plesiotypes. 



Fort Pierre (Cret.). Great Bend of the Missouri, below 

 Fort Pierre, South Dakota. 



Meek, Rept. U. S. Geol. Surv. Terr., IX, 1S75, p. 447, pi. 24, 

 figs. ia-c. 



= Pachydiscus complexus. 



1276. Ammonites complexus suciaensis Meek. Cotypes. 



12396. Nanaimo (Cret.). Sucia Island, and Komooks , Vancouver 



Island. 



Meek, Proc. Acad. Nat. Sci. Phila., for 1S61, p. 317; Bull. U. S. 

 Geol. and Geogr. Surv. Terr., II, No. 4, 1S76, p. 369, pi. 5, 

 figs. 2a-c. 



= Pachydiscus suciaensis. 



203. Ammonites cordiformis Meek and Hayden. Cotypes. 



Jurassic. Black Hills, South Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., for 1858, p. 57; 

 Pal. Upper Mo., Smithsonian Cont. to Knowl. No. 172, XIV, 

 1864, p. 122, pi. 5, figs. 2a-e. 



= Cardioceras cordiforme. 



12345. Ammonites cordiformis Meek and Hayden. Plesiotypes. 



12294. Jurassic. Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 1880, 

 p. 378, pi. 6, figs. 20-23. 



= Cardioceras cordiforme. 



12308. Ammonites cordiformis distans Whitfield. Holotype. 



Jurassic. Two miles south of Belle Fourche River, near 

 Bear Dodge Butte, Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 1880, 

 p. 380, pi. 6, fig. 25. 



— Cardioceras cordiforme distans. 



384. Ammonites haili Meek and Hayden. Holotype. 



Fort Pierre (Cret.). Missouri River, 150 miles above 

 mouth of Milk River, Montana. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., VIII, 1856, p. 70. 



= Phylloceras? halli. 



314. Ammonites henryi Meek and Hayden. Holotype. 



Jurassic. Southwest part of Black Hills, South Dakota. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., for 1858, p. 57; 

 Pal. Upper Mo., Smithsonian Cont. to Knowl. No. 172, XIV, 

 1864, p. 123, pi. 4, figs. 9a-c. 



20109. Ammonites (Lillia) howelli White. Cotypes. 



Jurassic. Wrangell Bay, Alaska. 



White, Bull. No. 51, U. S. Geol. Surv., 1889, p. 68, pi. 12, figs. 1, 2; 

 pi. 14, figs. 1-3. 



