Greger-Eublastoidea ; 163 
Pentremites missouriensis SWALLOW. 
1860, Transactions, St. Louis Academy of =e vol. 2, p. 81. 
Archimedes limestone; Missouri and Illin 
Pentremites nodosus HAMBACH. 
1886, Transactions, St. Louis Academy of Science, vol. 4, p. 155, 
pl. B, fig. 2. 
> 
Kaskaskia limestone; Randolph County, Illinois. 
Pentremites nodosus Hampacu, WELLER. 
1920, Illinois Geological Survey, Bulletin 41, p. 356, pl. 4, 
fig. 25. 
Lower Okaw limestone; Randolph County, Illinois. 
Pentremites norwoodi Owen and SHUMARD. 
1850, Journal, rere of Natural Sciences of Philadelphia, 
(2) Vol. 2, p. 64, pl. 7, figs. 13 a-c 
Subcarboniferous limestone; Birlingtcet and Augusta, Iowa; 
Oquawka, Il]linoi 
Pentremites norwoodi Owen and SHUMARD. 
1852, Ss of a  Ceeiveieel Survey of Wi 
Minneso 
pl. V. fi roe wah aa 
Burlington limestone; Burlington and Augusta, 
Oquawka, Illinois. 
isconsin, Iowa and 
Dale Owen, Philadelphia, pp. 591-592, 
Iowa; 
Pentremites norwoodi OWEN and SHUMARD, WHITE. 
1863, Journal, Boston Society of Natural History, vol. 7, No 
4, p. 483. 
Pentremites obesus Lyon. 
1857, Report, Kentucky Geological Survey, vol. 3, p. 469, pl. 2, 
figs. 1-]d. 
Mpls Carboniferous beds of the Millstone Grit; Crittenden 
cky. 
County, Kentu 
Pentremites obesus Lyon, HALL 
858, Report on the Geological Survey of Iowa, vol. 1, pt. 2, 
p. 695, pl. 25, fig. 15 
Kaskaskia limestone; Southern Illinois and Kentucky. 
Pentremites obesus Lyon, KEYEs. 
1894, Missouri Geological Survey, Paleontology, vol. 4, p. 135, 
(not figured). 
Kaskaskia limestone; St. Marys, Missouri. 
