EARLY TERTIARY OSTRACODA OF THE 

 FAMILY TRACHYLEBERIDIDAE FROM 

 WEST PAKISTAN 



By Q. A. SIDDIQUI 



CONTENTS 



I. Introduction 

 II. Acknowledgments . 



III. LlTHOLOGICAL UNITS 



IV. Systematic descriptions 



Subclass Ostracoda Latreille 

 Order Podocopida Miiller 

 Suborder Podocopina Sars 

 Superfamily Cytheracea Baird 



Family Trachyleberididae Sylvester-Bradley 

 Genus Actinocythereis Puri 



Actinocythereis ? quasibathonica sp. nov 

 Genus Alocopocythere nov. 



Alocopocythere transcendens sp. nov. 

 Alocopocythere rupina sp. nov. 

 Alocopocythere abstracta sp. nov. 

 Alocopocythere coarctata sp. nov. 

 Alocopocythere longilinea sp. nov. 

 Alocopocythere transversa sp. nov. 

 Alocopocythere radiata sp. nov. 

 Genus " Anommatocy there " Sohn 



" Anommatocy there " laqueta sp. nov. 

 " Anommatocythere " confirmata sp. nov. 

 Genus Bradley a Hornibrook . 



Bradleya ? voraginosa sp. nov. 

 Genus Buntonia Howe 

 Buntonia devexa sp. nov 

 Buntonia sp. A 

 Genus Costa Neviani 

 Subgenus Paracosta nov. 



Costa (Paracosta) declivis sp. nov. 

 Costa (Paracosta) compitalis sp. nov. 

 Costa (Paracosta) disintegrata sp. nov 

 Genus Echinocythereis Puri 



Subgenus Echinocythereis sensu stricto 



Echinocythereis (Echinocythereis) contexta sp. nov 



Echinocythereis (Echinocythereis) elongata sp. nov 



Subgenus Scelidocythereis nov. 



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