DISTRIBUTION OF PALEOZOIC OSTRACODES 



IIS 





TIME RANGE 



OF PALEOZOIC OSTRACODE 



GENERA 

















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z 



^ 













z 



< 







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1 



z 

 < 

 z 



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CO 



1 



CO 



z 

 < 





> 



z 

 < 



z 



< 



z 



% 



i 



>- 



CO 



Z 

 < 





§ 



a. 



-J 



§ 



CO 



<2 



-z. 



2 



2 

 cc 





2 





o 



> 



CO 



z 

 z 







cc 



UJ 





LlJ 



LU 





CC 



LxJ 



— 



LU 



LlJ 





o 



t/> 



O 



S 



O- 



Q. 





o 



CO 



Q 



S 



Q. 



a. 



Kellettina 















_ 



Polytylltes 











_ 





Kle.owla 



____ 















Polyzygla 

















Klrkby* 





— 



.. 



--—4 





^_ 



Ponderodlctya 







-m. 









Klrkbyell* 







• 











Pontocyprls 























Klrkbylna 

 Klrkbyitas 















Prlmltla 

 Prlmltlella 





■^M 













































Eloedenella 

 notfdsnelllna 















Prlmltlopsls 

 Proparaparchltea 



































.. .. ^ 







noedenl* 



— .. 



— -^^ 



^ 









Pseudoparaparchltea 













— 







Knight laa 

















Pseudostrepula 





















Knoxln* 



















Pullvlllltea 







.. — 











Kravnella 















Pyxlprlmltla 



















Krlthe T 

















Quaslllltes 







— 









Kyajmodaa 

 Laccoprlmltl4 















HBiCVdF6XX& 





















"~~ 









Ranapeltls 







«. 













Laddslla 



— 













Rayella 



— 













Up«rdltellA 



m 













Raymondatla 



— 













L«perdltla 



■ 



-^^^ 











Rhomb Ina 























Lladsayalla 

















Rlchlna 

















toohrlella 









— 







Rlchterlna 















tueaaalla 

 Baorocyprla 















Rlgldella 

 Ropolonellus 

























.. 



^ 



















Macrocyproldoe 

















Rothella 







— 









Uacronotalla 



.^_ 















Roundyella 













— 









Uaratla 

















Rudder Ina 

















Mastlgobolblna 





-» 











Saccelatla 



— 













Mauryalla 









— 







Saffordelllna 



— 













Xenoeldlna 

















Sanaabella 











— 



— 



Mesoglypha 









— 







Sargentlna 















MaaoBphalus 







__ 









Savagella 















Mlcrochelllnella 

 Ulorocoalonella 













. 





- 



Scaberlna 

 Schmldtella 











— 





























Mlcroparaparchl tas 









— 







Scofleldla 



— 













Uilleratia 



— 













Semlnolltes 

 Sllenltes 











— "- 





Mlroehlllna 



























Konocaratalla 

















Splnovlna 

















Monocaratlna 



Mooraa 



Kooralna 















StniiaT nf n a 



























Steuslofflna 

 Stlbus 

































_ 









Moorltaa 









.^ 



-- ■ 





Strepula 



















NabdantOBls 







— 









Strepulltes 







— 









Naoaparchltaa 





— 











Suchonella 











— 





Naochlllna 







— 









Suchonellina 











— 





Naokloadanalla 

 Novaklna 















Sulcella 

 Sulcuna 

















_ 































NuTaralla 











— 





Talllnnella 

















Octonarla 

 Octonarlalla 



— 



--■^M- 



-^ 









Tetradella 

 Tetraaacculua 





■ — 



































Offa 

 Ollganlsus 







































Tetratjlus 















Oplkatla 

















Thllpaura 





— 



— — 









Oplkalla 

















Thllpsurella 





.^ — 



t^f— 









OplkluB 

















Thllpsurlna 

















PachydoBialla 















Thomasatla 



— 

















Paenaaqulna 















Tonlella 













— 









PalaocyETla 









— 





Treposella 







— 









Paleocythara 















Tribolblna 















Parabolblna 

 Paracavalllna 



— . . 











Trlceratlna 

 Trlcornlna 





















^ 



















Paraacbmlna 





1, 











1 Tubullbalrdia 















Paragraphylua 









_ 







Uhaklella 



— 













Parahealdla 







— 









Ulrlcholla 





— 











Paraparchltas 









— ^g 





— 



Clri chla 









-- 











Paras chaldtel la 

 Parenthatla 















Venula 

 Vltavlaa 































— 











Perprlaltla 









.• 







Waldronltea 















Phanasoymetrla 

















Warthlnla 















Fhilomadea 



















Waylandella 









.... — 



. - ■ 





Phreatura 

















Wellerlna 







.. 













Plretalla 

















Whlpplella 











— 





Placantella 

















Wlnchellatla 



— 













Plaglonephrodoa 

 Platychllalla 









— 





1 Xeatoloberls 

 Younglella 





— 

































Plethobolblna 





-^ 









Zygobeyrlchla 





-^ 











Polonialla 







— 









Zygobolba 





-- -^-- 



— 









Polycaratalla 

















Zygobolblna 





— 











Polycopa 















Zygobolboldes 

 Zygosella 





z. 











Fig. 9. — Stratigraphic distribution of Paleozoic ostracode genera: Kellettina — Zygosella. 



