CALLAWAY LIMESTONE. 



35 



Worthen are more numerous than other remains but in the best 

 collecting localities one may collect for several days without 

 finding a specimen. 



The following is a list of all of the Callaway limestone 

 species known to the writer. 



Coelenterata 



Acervularis davidsoni Edwards and 



Haime (a) 

 Cyathophyllum halli (Edwards and 



Haime) (r) 

 Diplophyllum callawayensis Branson (r) 

 Favosites alpenensis Winchell (c) 

 Favosilies limitaris Rominger (c) 



Crinoidea 



Fragments of Megistrocrinus ? and 

 Stereocrinus ? (c) 



Brachiopoda 



Athyris fultonensis Swallow (a) 

 A try pa reticularis (Linnaeus) (a) 

 Cranaena iowensis (Calvin) (a) 

 Crania famelica Hall and Whitfield (r) 

 Cyrtina missourtensis (Swallow) (c) 

 Leptaena rhomboidalis (Wilckens).(r) 

 Martinia halli Branson (r) 



Newberria missouriensis Swallow (r) 

 Pentamerella fultonensis Branson (r) 

 Rhynchonella gregeri Branson (r) 

 Schizophoria striatula (Schlotheim) (c) 

 Spirifer as per Hall (r) 

 Spirifer euryteines Owen (c) 

 Stropheodonta demissa (Conrad) (c) 

 Syringothyris occidentalis (Swallow) (c) 



Pelecypoda 



Conocardium ohioense Meek (r) 



Paracyclas elliptica Hall (c) 

 Gastropoda 



Spiroraphe arata (Hall) (r) 

 Pisces 



Dipterus mordax Eastman (r) 



Ptyctodus calceolus (Newberry and Wor- 

 then) (r) 



Onychodus sigmoides Newberry 



Unidentified fish remains (r) 



Greger's 1 list includes Pleurotomaria providensis Broadhead 

 which occurs only in the Cooper. At the time that Greger made 

 his list the Cooper was supposed to be part of the Callaway. 

 The Stropheodonta costata Owen of his list is the S. demissa 

 (Conrad) of this paper, his Spirifer iowaensis Owen is S. 

 euryteines Owen of this paper, his Pentamerella dubia Hall is P. 

 fultonensis Branson of this paper. His P achy phy Hum woodmani 

 White is not in the collections studied. 



Correlation. — Of the 25 species identified from the Callaway, 

 11 occur in the Cedar Valley limestone of Iowa, and these are 

 the most important forms. The following list is common to 

 the two formations. 



Acervularia davidsoni Edwards and Haime 

 Cyathophyllum halli (Edwards and Haime) 

 Favosities alpenensis Winchell 

 A thyris fultonensis Swallow 

 Atrypa reticularis (Linnaeus) 

 Cranaena ioivensis (Calvin) 

 Schizophoria striatula (Schlotheim) 



Spirifer asper Hall 

 Spirifer euryteines Owen 

 Stropheodonta demissa (Conrad) 

 Ptyctodus calceolus (Newberry and Wor- 

 then) 



'Am. Jour. Sci., vol. 27, p. 378. 



