Haborodelphis japonicus

Haborodelphis japonicus is an extinct whale of the beluga-like odontocete group, known from the Early Pliocene of the north-west Pacific. It is the type species of the genus Haborodelphis, which was named by Hiroto Ichishima and colleagues. The type fossil was found in the Embetsu Formation at Haboro in Japan, and as of 2021 only that one specimen was known. The Paleobiology Database records the authority Ichishima and colleagues 2019, places the species in the Zanclean age between about 5.3 and 3.6 million years ago and lists a single occurrence. The genus is counted among the extinct members of the family Monodontidae, alongside the ancestors of the living narwhal and beluga.