TYPE SPECIMENS OF INVERTEBRATE FOSSILS 33 



Charactoc erina - -Continued 



multicamerata Foerste 



Foerste. A. F.. 1935: p. 88, 89, pi. 21, figs. 1, 2. 

 Holotype 90955 



Big Horn Fm. Wyoming 



Clarkoceras 



affine Ulrich, Foerste, and Miller 



Ulrich, E. O., et al., 1943: p. 81, pi. 29, figs. 3, 4. 

 Holotype 108311 



Gasconade Dol. Missouri 



arcuatum Ulrich. Foerste, and Miller 



Ulrich, E. O., et al.. 1943: p. 81. 82. pi. 43, figs. 11. 14, 15. 

 Holotype and paratypes 108312a-d, 108313 



Gasconade Dol. Missouri 



arcuatum ? Ulrich, Foerste, and Miller 



Ulrich, E. O., et al., 1943: p. 81, 82, pi. 43, figs. 12, 13. 

 Figured and described specimens 108314; 108315a. b 



Oneota Dol. Wisconsin 



buttsi Ulrich, Foerste, and Miller 



Ulrich, E. O.. et al., 1943: p. 82, 83, pi. 44, figs. 6, 7; text-fig. 6. 

 Holotype 97285 



Chepultepec Dol. Tennessee 



cf. C. calvini Ulrich, Foerste, and Miller 



Cloud, P. E., Jr., and Barnes, V. E.. 1948: pi. 39, fig. 25. 

 Figured specimen 140098 



Tanyard Fm., Staendebach Mbr. Texas 



cinctum Ulrich, Foerste, and Miller 



Ulrich, E. O., et al., 1943: p. 84, pi. 48, figs. 10. 11. 

 Holotype 108316 



Gasconade Dol. Missouri 



confertum Ulrich, Foerste, and Miller 



Ulrich. E. O., et al., 1943: p. 85, 86, pi. 49, figs. 3, 4. 

 Holotype 108317 



Gasconade Dol. Missouri 



crassum Ulrich, Foerste, and Miller 



Ulrich, E. O., et al., 1943: p. 86, 87, pi. 22, figs. 1. 2. 

 Holotype 108318 



Gasconade Dol. Missouri 



