20 



CHESTER OSTRACODES OF ILLINOIS 



Species 



3 



1) 



d 



c 



PL. 



d 



8 



'o 

 O 



c 



OS 

 tu 



Q 

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o 



c 

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-a 

 a 









6 



Neokloedenella prima Croneis and Funkhouser 



Neokloedenella secunda Croneis and Bristol 



X 



X 



X 

 X 



X 



X 

 X 



? 



X 



X 



X 

 X 

 X 



X 

 X 



X 



cf. 



X 



X 

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X 

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 X 



X 



X 

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cf. 



X 



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X 



X 

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X 



p 



X 

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cf. 



X 



X 

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X 



X 

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X 



X 



X 



X 

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X 



X 

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X 

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X 







X 

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X 

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X 

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X 



X 



X 

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1 '^ 



6 

 6 



Neokloedenella subquadrata Croneis and Gutke 



Olio'anisus 2eisi Croneis and Gutke 





Perprimitia'^ bicornis Croneis and Gale 





Perprimitia elongata Cooper 







Perprimitia funkhouseri Croenis and Thurman 



Perprimitia matheri Croneis and Bristol 



— 



Perprimitia robusta Croneis and Gale ....:. 







Perprimitia sigynae (Coryell and Johnson) . .... 







Perprimitia tenera Cooper ... 







Perprimitia turrita Croneis and Gutke . . . 







Sansabella ampla Cooper .... 





Sansabella amsdenensis Morey . . 



7 



Sansabella bradfieldi (Coryell and Sohn) 



3,6 



Sansabella declivis Cooper . . 







Sansabella? dubia Morey 



/ 



Sansabella elongata Cooper 







Sansabella harrisi Croneis and Funkhouser 



3 



Sansabella lenticularis Cooper 





Sansabella njorthi (Coryell and Johnson) 







Sansabella ovata Cooper 







Sansabella parallela Cooper 







Sansabella sulcata Roundy. 



1,^ 



Sansabella truncata Cooper 





Sansabella tumida Coryell and Sohn . 



6 



Sansabella vinltaensis (Harlton) 



3,4 



LEPERDITELLIDAE 



Cyathus vetustus Cooper .... 





Microcoelonella scanta Coryell and Sohn 



6 



Microparaparchites erectus Cooper 





Microparaparchites inornatus Croneis and Bristol . . . 

 Microparaparchites spinosus Croneis and Gale 



Paraparchites cyclopeus (Girty) 



3 



Paraparchites gibbus Bell 



5 



Paraparchites inornatus (McCoy) 



3 



Paraparchites kinkaidensis Croneis and Thurman 



Paraparchites nicklesi (Ulrich) . 



\6,7 



Paraparchites ovatus Cooper 



Proparaparchites fabulus Cooper 





Proparaparchites ovatus Cooper 







Pseudoparaparchites? aclis Croneis and Thurman. . . . 



PRIMITIIDAE 

 Carboprimitia campa Cooper 



— 



Carboprimitia depressa Croneis and Funkhouser 



Carboprimitia longula Cooper . . 



6 



Carboprimitia rotunda Croneis and Funkhouser 



Carboorimitia simulans Croneis and Bristol 



— 



