Named By: B. Du Bus - 1867.
Classification: Chordata, Mammalia, Cetacea, Odontoceti, Eurhinodelphinidae.
Species: E. cocheuteuxi (type), E. ambiguus, E. bossi, E, longirostris.
Size: 2 meters long.
Known locations: Worldwide in oceans across the Northern hemisphere.
Time period: Miocene.
Fossil representation: Multiple specimens.
confused with the similarly named ichthyosaur
Eurhinodelphis was a Miocene era cetacean
resembled a long
snouted dolphin. Another similarity to dolphins is the asymmetrical
brain which means one side was different than the other. Additionally
Eurhinodelphis had extremely well developed hearing
and is considered
to have possibly hunted by echolocation.
The long jaws, particularly the upper which extends beyond the lower has been interpreted as being the main prey killing adaptation. Like with sword fish, palaeontologists think that Eurhinodelphis would have swum into a shoal of fish and thrashed its long snout about to inflict injuries upon the fish. Once injured the fish could not swim and move with the rest of the shoal and became easy prey.
- Sur quelques mammiferes du crag d'Anvers. - Bulletins de L'Academie Royale des Sciences, des Lettres et des Beaux-Arts 24:562-577 - B. Du Bus - 1867.
- Systematic revision of the Miocene long-snouted dolphin Eurhinodelphis longirostris Du Bus, 1872. - Bulletin de l'Institut royal des Sciences naturelles de Belgique, Sciences de la Terre 74:147-174 - O. Lambert - 2004.