Denebola is an extinct genus of whale belonging to the family Monodontidae.

It contains a single known species, Denebola brachycephala.

It is the earliest known ancestor of the beluga, Delphinapterus leucas, and dates from the Upper Miocene period.

[2] A fossil was found in the Baja California peninsula, indicating that the family once existed in warmer waters.

[3]