64 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. L bull. 87. 



Table YII. — Cdrhomftroiix and Permian Jirdcliiopoda — Continued. 



Species. 



Setniiuila argentea (.Shepard) 



Semiuiila caput-serpenti-s (Swallow) 



Seminwla charitonensis (Swallow) 



Semiunla claytoni (Hall and Whitfield) 



Soniiuula dawsoui Hall and Clarke 



Semiunla formosa (Swallow) 



Seminula hawni (Swallow) 



Seniinula niaconensis (Swallow) 



Seminula parva (Swallow) 



Seminula persinuata (Meek). Carboniferous. 



SeminiTla ( ?) plattensis (Swallow) 



Seminula singletonii (Swallow) 



Seminula subquadrata (Hall) 



Seminula trinuclea Hall 



Seminula •wasatchensis (White) 



Spirifer acuticostatus de Koninck 



Sjurifer agelaius Meek 



Spirifer albapinensis Hall and "Whitfield 



Spirifer anuectans Waleott 



Spirifer biplicatus Hall 



Spirifer boonensis Swallow 



Spirifer cameratus Morton 



Spirifer cameratus percrassus Swallow , 



Spirifer centronatus A. Winchell 



Spirifer clavatulus McChesney 



Spirifer deltoideus Herrick 



Spirifer desideratus Waleott , 



Spirifer duplieostus Phillips. Carboniferous. 

 Spirifer fastigatus Morton. Carboniferous. 



Spirifer ( ?) flmbriatus Morton 



Spirifer forbesi Norwood and Pratten 



Spirifer fultonensia Worthen 



Spirifer grimesi Hall 



Spiri fer imbrex Hall 



Spirifer incertus Hall 



Spirifer increbescens Hall 



Spirifer increbescens americanus Swallow 



Spirifer increbescens transversalia Hall 



Spirifer kelloggi Swallow 



Spirifer keokuk Hall 



Spirifer keokuk sbelbyensis Swallow 



Spirifer lateralis Hall 



Spirifer latior Swallow 



Spirifer leidyi Norwood and Pratten 



Spirifer leidyi chesterensis Swallow 



Spirifer leidyi merimacensis Swallow 



Spirifer littoni Swallow 



Spirifer logani Hall 



Spirifer marcoui Waagen 



Spirifer marionensis Shumard 



Eocarboniferous. 



Meso- 

 carbon- 

 iferous. 



Kinder- 

 hook. 



Keo- 

 kuk, 

 Bur- 

 lington. 



K 



Kaskaa- Coal 

 kia, j Meas- 

 St. Louis, urea. 



EC 



EC 



B 



EC 



B 



B 

 B 

 B 



K 

 K 



Xa 

 SL 



Ka 

 Ka 

 Ka 



SL 

 SL 



SL 

 Ka 



SL 

 SL 



X 



X 

 X 



X 



X 



X 

 X 



X 



X 



Neo- 

 carbon - 

 iferoua. 



X 

 X 

 X 



X 



Per- 

 mian. 



