146 U.S. NATIONAL MUSEUM BULLETIN 262 



Aulatornoceras 



bicostatum (Hall) 



House, M. R., 1962: p. 275, pi. 46, fig. 10; text-fig. lid. 

 Hypotypes 137662, 137663 



Gowanda Sh. New York 



Axinolobus 



modulus Gordon 



Gordon, Mackenzie, Jr., 1960: p. 149, 150, text-figs. 1-1, m. 

 Holotype 119684 



Morrow Series Oklahoma 



cf. A. modulus Gordon 



Gordon, Mackenzie, Jr., 1964b: p. 276, pi. 30, figs. 5, 6, 17, text- 

 fig. 89b. 



Figured specimen 119681 



BloydSh., Kessler Ls. Mbr. Arkansas 



Figured specimen 120195 

 Witts Springs Fm.; reworked 



pebble in Atoka Fm. Arkansas 



Bey richoc eras 



hornerae Miller 



Gordon, Mackenzie, Jr., 1964b: p. 183, 184, pi. 17, figs. 34, 35. 

 Illustrated artificial mold of 



holotype (YPM 17112) 146320 



Boone Fm. (float boulder) Missouri 



micvonotum (Phillips) 



Gordon, Mackenzie, Jr., 1957: p. 40, 41, pi. 4, figs. 33-38; text-figs. 



15a, c. 

 Hypotypes 118964-118965 



Alapah Ls., black chert and sh. mbr. Alaska 



micvonotum ? (Phillips) 



Gordon, Mackenzie, Jr., 1957: p. 40, 41, text-fig. 15b. 

 Figured specimen 118966 



Alapah Ls., black chert and sh. mbr. Alaska 



sp. 



Gordon, Mackenzie, Jr., 1957: p. 42, pi. 4, figs. 30-32; text- figs. 



16a, b. 

 Figured specimen 118967 



Alapah Ls. Alaska 



