32 IOWA ACADEMY OP SCIENCES. 
TABLE SHOWING VERTICAL RANGE OF FOSSILS— Continued. 
Gilbertsocrinus sp? 
Gilbertsocrinus tuberculosus (Hall).. 
Gilbertsocrinus obovatus (Meek & 
Worthen) 
Cryptoblastus melo (Owen&Shumard) 
Granatocrinus granulosus, Meek & 
Worthen 
Granatocrinus norwoodi (Owen & 
Shumard) 
Granatocrinus projectus (Meek & 
Owen) 
Granatocrinus pisum (Meek & 
Worthen) — 
Granatocrinus aplatus, Rowley 
Granatocrinus magnibasis, Rowley. . . 
Granatocrinus concinnulus, Rowley . . 
Granatocrinus sp? 
Granatocrinus sp? 
Schizoblastus sayi (Shumard) 
Graphiocrinus sp? 
Ichtbyocrinus burlingtonensis, Hall . . 
Ichthyocrinus sp? 
Megistocrinus evansi (Owen & Shu 
mard) 
Pentremitese’ongatus, Shumard 
Physetocrinus ornatus (Hall) 
Physetocrinus venticosus (Hall) 
Physetocrinus sp? 
Platycrinus americanus, Owen & Shu- 
mard 
Platycrinus asper. Meek & Worthen 
Platycrinus burlingtonensis, Owen & 
Shumard 
Platycrinus cavus, Hall 
Platycrinus ct rrugatus, Owen & Shu 
mard 
Platycrinus disoideus, Owen & Shu- 
mard 
Platycrinus excavatus, Hall 
Platycrinus halli, Shumard 
Platycrinus incomptus, White 
Platycrinus perasper,Meek& Worthen 
Platycrinus pileiformis, Hall 
Platycrinus planus, Owen& Shumard 
Platycrinus pocilliformis, Hall — 
Platycrinus regalis. Hall 
Platycrinus scobina, Meek & Worthen 
Platycrinus subspinosus, Hall 
Platycrinus altidorsatus, Rowley — 
Platycrinus corbuliformis, Rowley. . . 
Platycrinus marginatus, Rowley 
Platycrinus pisum, Rowley 
Platycrinus planobasalis, Rowley 
Platycrinus lautus, S. A. Miller 
Platycrinus sp?.. 
Platycrinus sp? 
Poteriocrinus sp? 
Poteriocrinus waltersi, Rowley 
Poteriocrinus sp? 
Rhodocrinus barrisi. Hall 
Rhodocrinus wachsmuthi, Hall 
Rhodocrinus whitei. Hall 
Rhodocrinus wortheni. Hall 
Saccocrinus amplus, Meek & Worthen 
Steganocrinus araneolus, (Meek & 
Worthen) 
Steganocrinus concinnus, Shumard.. 
3 8 
4 5 
6 7 8 9 
10 11 
13 14 15 16 17 
18 19 30 
Upper BurlingtO] 
