88 U.S. NATIONAL MUSEUM BULLETIN 262 



Metacoceras — Continued 



perelegans Girty 



Girty, G. H., 1911b: p. 147, 148. 



Syntypes 120696. 120697 



Wewoka Fra. Oklahoma 



Girty, G. H., 1915a: p. 244, pi. 30, figs. 5a-c, 6. 

 Lectotype and paratypes 120696, 120697 



Wewoka Fm. Oklahoma 



sculptile Girty 



Girty, G. H., 1911b: p. 148, 149. 



Syntypes 120677, 120678 



Wewoka Fm. Oklahoma 



Girty, G. H., 1915a: p. 245, 246, pi. 31, figs, la-d; 2, 2a. 

 Syntypes 120677, 120678 



Wewoka Fm. Oklahoma 



walcotti Hyatt 



Hyatt, Alpheus, 1891: p. 337-339, figs. 36, 37. 

 Syntype 23873 



Carboniferous Texas 



Metaplectoceras 



? landerense Foerste 



Foerste, A. F., 1935: p. 92, pi. 21, fig. 3. 

 Holotype 90954 



Big Horn Fm., Lander Ss. Mbr. Wyoming 



Metarizoceras 



erectum Foerste 



Foerste, A. F., 1930b: p. 26, 27, pi. 2, figs. la-c. 

 Paratype 81422 



Port Byron Dol. Illinois 



savagei Foerste 



Foerste, A. F., 1930b: p. 24, pi. 1, figs. 2a, b. 

 Holotype 81421 



Port Byron Dol. Illinois 



Michelinoceras 



dutroi Gordon 



Gordon, Mackenzie, Jr., 1957: p. 20, pi. 1, figs. 3-6. 

 Holotype and paratype 118990, 118991 



Alapah Ls., black chert and 

 sh. mbr. Alaska 



