Hippocrepina depressa
Vasicek, 1947
identified by scientist   
Jurassic
off West Australia

Hippocrepina depressa
Vasicek, 1947
identified by scientist   
Cretaceous
off West Australia

Hippocrepina indivisa
Parker, 1870
identified by scientist   
Quaternary
Gulf of St. Lawrence

Hippocrepina rudis
Fuchs, 1970
type specimen   holotype
Jurassic
Vienna Basin