Tritaxia eggeri
Schreiber, 1980
identified by scientist   
Cretaceous
Kurdistan

Tritaxia eggeri
Schreiber, 1980
identified by scientist   
Cretaceous
Kurdistan

Tritaxia midwayensis
(Cushman, 1926)
identified by scientist   
Paleogene
North Africa

Tritaxia pyramidata
Reuss, 1863
identified by scientist   
Cretaceous
North European Plain

Tritaxia tricarinata
(Reuss, 1844)
identified by scientist   
Cretaceous
North European Plain

Tritaxia tricarinata
(Reuss, 1844)
identified by scientist   
Cretaceous
North European Plain

Tritaxia tricarinata
(Reuss, 1844)
identified by M. Hesemann   
Cretaceous
North European Plain

Tritaxia whitei
(Cushman and Jarvis, 1936)
identified by scientist   
Cretaceous
Kurdistan

Tritaxia whitei
(Cushman and Jarvis, 1936)
identified by scientist   
Cretaceous
Kurdistan