Eurhinodelphinidae
Eurhinodelphinidae is an extinct Family (biology), family of toothed whales which lived from the Oligocene to the Miocene. Members of the family possessed an elongated jaw similar in appearance to a swordfish. Taxonomy *Family Eurhinodelphinidae **''Ceterhinops'' **''Eurhinodelphis'' **''Iniopsis'' **''Mycteriacetus'' ** ''Phocaenopsis'' **''Schizodelphis'' **''Vanbreenia'' **''Xiphiacetus'' **''Ziphiodelphis'' References

Prehistoric toothed whales Prehistoric mammal families {{paleo-whale-stub ...
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Macrodelphinus
''Macrodelphinus'' is an extinct genus of primitive odontocete known from Late Oligocene (Chattian) marine deposits in California. Biology ''Macrodelphinus'' was an orca-sized odontocete similar to members of Eurhinodelphinidae in having a swordfish-like rostrum and upper jaw. Because of its size, and inch-long teeth, it is believed to have been an apex predator. Classification ''Macrodelphinus'' is known from a fragmentary skull from the Late Oligocene Jewett Sand Formation of Kern County, southern California. Although often classified as a member of Eurhinodelphinidae, the cladistic analysis of ''Chilcacetus'' recovers it outside Eurhinodelphinidae, less advanced than ''Eoplatanista''. The Miocene species ''"Champsodelphis" valenciennesii'' Brandt, 1873, based on a rostrum fragment from marine sediments in Landes, France, was assigned to ''Macrodelphinus'' by Kellogg (1944).R. Kellogg. 1944. Fossil Cetaceans from the Florida Tertiary. Bulletin of the Museum of Comparative Zoolo ...
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