TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 37 



381. Ammonites complexus Hall and Meek. Plesiotypes. 



Fort PieiTL' (Cret.)- Great Bend of the Missouri, below 

 Fort Pierre, South Dakota. 



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

 figs. la-c. 



= Pach ydiscus complexus. 



1276. Ammionites complexus suciaensis Meek. Cotypes. 



12396. Nanaimo (Cret.). Sucia Island, and Komooks ,\'ancouver 



Island. 



Meek, Proc. Acad. Nat. Sci. Phila., for 1861, p. 317; Bull. 1'. vS. 

 Geol. and Geogr. vSiirv. Terr., II, No. 4, 1S76, j). 369, p\. 5, 

 figs. 2a-c. 



= Pachydiscus suciaensis. 



203. Ammonites cordiformis Meek and Hayden. Cotypes. 



Jura.s.sic. lilack Hills, South Dakota. 



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

 Pal. I'pper Mo., Smithsonian Cent, to Knovvl. No. 172, XIV, 

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



~Cardioceras cordifornie. 



12345. Ammonites cordiformis Meek and Hayden. Plesiotypes. 



12294. Jurassic. Black Hills, vSouth Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 1H80, 

 p. 378, ])1. 6, figs. 20-23. 



— Cardioceras cordifornie. 



1230S. Ammonites cordiformis distans Whitfield. Holotype. 



Jurassic. Two miles .south of Belle Fourche River, near 

 Bear Lodge Butte, Black Hills, South Dakota. 



Whitfield, Rept. Geol. and Resources Black Hills, Dakota, 18S0, 

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



— Cardioceras cordifornie distans. 



384. Ammonites halli Meek and Hayden. Holotype. 



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

 mouth of Milk River, Montana. 



Meek and Ilaydi'n, Proc. Acad. Nat. Sci. Phila., \'1II, 1S56, p. 70. 

 = Phylloceras? lialli. 



314. Ammonites henryi Meek and Hayden. Holotype. 



Jurassic. vSout Invest part of Black Hills, vSoutli Dakota. 



:\Ieek and Ilayden, 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, tia-c. 



20109. Ammonites CLillia) howelli White. Cotypes. 



Jura.ssic. Wrangell Bay, Ala.ska. 



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

 pi. 14, figs. 1-3. 



