140 CYSTIDS AND BLASTOIDS. 



Oranatocrinus projectus 'ULeek. & Worthen, 1868: Geol. Sur. Illinois, vol. 



Ill, p. 496, pi. xviii, fig. 7. 

 Schizoblastus projecius 'Eiihridge & Carpenter, 1886: Cat. Blastoidea, p. 142. 



Like an immature G. norwoodi, but is lobed, and has pro- 

 jecting basal parts. 



Horizon and Localities. — Lower Carboniferous, Lower 

 Burlington limestone : Hannibal, Louisiana. 



Granatocrinus norwoodi [Owen & Shumard ). 



Plate xviii, fig. 10. 



Peniremites norwoodi Owen & Shumard, 1850: Jour. Acad. Nat. Sci., 

 Phila., vol. I, p. 64, pi. vii, figs. 13a-c. 



Peniremites norwoocli Owen cfc Shumard, 1852: U. S. Geol. Sur. Wiscon- 

 sin, Iowa and Minnesota, p. 591, pi. vA, figs. 13a-c. 



Elceacrinus norwoodi Shumard, 1863: Trans. St. Louis Acad. Sci., vol. 

 II, p. 112. 



Granatocriyius norwoodi Shumard, 1835: Trans. St. Louis Acad. Sci., 

 vol. II, p. 875. 



Granatocrinus norwoodi Meek & Worthen, 1875: Geol. Sur. Illinois, vol, 

 V, p. 465, pi. ix, figs. 2a-e. 



Granatocrinus norwoodi Ethridge *& Carpenter, 1886: Cat. Blastoidea, p. 

 245, pi. ii, figs. 34-36. 



Calyx about as long as wide, somewhat pentagonal, base 

 small, excavated. Basals very small, lying in the deep basal 

 concavity. Radials long, nearly equaling the height of the 

 calyx. Deltoids small, triangular. Ambulacra narrow, with 

 parallel sides. Surface marked by small ridges and granules. 

 Column round. 



Horizon and localities. — Lower Carboniferous, Upper 

 Burlington limestone: Ash Grove (Greene county), Palmyra 

 ( Marion county ), Hannibal. 



Granatocrinus curtus (Shumard). 



Pentremiies curtus Shumard, 1855: Geol. Sur. Missouri, 1st & 2nd Ann. 



Rep., pt. ii, p. 187, pi. B, figs. 3a-b. 

 Granatoc7'inus curtus Miller, 1890: N. A. -Geol. and Pal., p. 250. 



Similar to G. norwoodi, but much smaller and broader. 

 Horizon and localities. — Lower Carboniferous, St. Louis ? 

 limestone : Fenton ( St. Louis county ). 



