''Pseudorca'' is a genus of

cetacea Cetacea (; , ) is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. They propel them ...

ns with three members which include ''

Pseudorca yokoyamai ''Pseudorca yokoyamai'' is an extinct species of oceanic dolphin from the Calabrian stage of the Pleistocene of Japan, an extinct relative of the modern day false killer whale (''P. crassidens''). Discovery and taxonomy ''Pseudorca yokoyamai'' ...

'', ''

Pseudorca yuanliensis ''Pseudorca'' is a genus of cetaceans with three members which include '' Pseudorca yokoyamai'', '' Pseudorca yuanliensis'' and ''Pseudorca crassidens ''Pseudorca'' is a genus of cetaceans with three members which include ''Pseudorca yokoyamai ...

'' and ''

Pseudorca crassidens ''Pseudorca'' is a genus of cetaceans with three members which include ''Pseudorca yokoyamai'', ''Pseudorca yuanliensis'' and ''Pseudorca crassidens'', of which ''P. crassidens'' (commonly known as the false killer whale) is the only extant membe ...

'', of which ''P. crassidens'' (commonly known as the false killer whale) is the only extant member. ''Pseudorca Crassidens'' travel in pods of 10-20 but may belong to larger schools around 100 and more ''Pseudorca yuanliensis'' is found in Pliocene layers in Yuanli, Taiwan, while ''Pseudorca yokoyamai'' is found in both Pliocene and Pleistocene rocks in Japan.

References

Oceanic dolphins Cetacean genera Mammal genera with one living species Taxa named by Johannes Theodor Reinhardt {{Cetacean-stub