FIELD INVESTIGATIONS IN 1 92 1 



847 



Pentremites princetonensis, two va- 

 rieties 



Pentremites pulchellus, three va- 

 rieties 



Pentremites tuscumbiw 



Platycrinus huntsvilkc and 14 other 

 crinoids listed separately in a fol- 

 lowing table 



Stenopora tuberculata 



Fistulipora sp. 



Ten or more other Bryozoa, all of 

 them common in the Upper Ohara 

 zones in western Kentucky 



Orthotetes kaskaskiensis 



Rhipidomella cf. dubia (same in Up- 

 per Ohara of western Kentucky) 



Chonctes chesterensis grandis 

 Composita trinuclea 

 Cliothyridina sublamellosa 

 Spirifer cf. breckcnridgensis 

 Spirifer cf. leidyi 



Spirifer cf. pellamsis and increbesccns 

 Rcticularia setigera 

 Spiriferina aff. spinosa 

 Avieulopecten sp. 



The following fossils were obtained from the top beds of the Sainte 

 Genevieve limestone in a qnarry and natural exposures at Mill Grove, 

 Owen County, Indiana : 



Triplophyllum spinulosum 

 Lithostrotion n. sp. aff. proliferum 

 Pentremites pulchellus 

 Pentremites princetonensis 

 Pentremites princetonensis (elongate 



variety ) 

 Pentremites immaturus 

 Platycrinus huntsvillw and 15 other 



crinoids listed separately in the 



following table 

 Stenopora cf. ramosa 

 Cwloconus rhombieus 



Fenestellidce, five or six species usu- 

 ally found in both upper and lower 

 members of the Sainte Genevieve. 



Spirifer pellwnsis 



Spirifer breckenridgensis 



Composita trinuclea 



Cliothyridina sublamellosa 



Pugnoides ottumwa 



Bucanopsis aff. textilis 



Orthonychia cf. acutirostra 



Euomphalus aff. planus 



Helodus sp. and five other kinds of 

 fish teeth. 



Species and geographic distribution of the Upper Ohara crinoid 

 fauna. — The following tabulated list of Upper Ohara crinoids shows the 

 wide distribution and practical unity of this crinoid fauna from Hunts- 

 ville, Alabama, to Owen County, Indiana, and Monroe County, Illinois. 

 In the columns on the right of the list the presence of the species at each 

 of the mentioned localities is indicated by a cross. The list is based on 

 collections in the U. S. National Museum, the specimens found at Hunts- 

 ville and near Burksville, Monroe County, Illinois, belonging to the 

 Springer Collection. The specific identifications were all made by Dr. 

 Frank Springer. The crinoid bed near Burksville was pointed out to 

 Doctor Springer's collector by Professor "Weller as belonging to his 

 Renault formation. 



