a new platanistoid dolphin from the Oligocene of New Zealand with a unique feeding method.

Pre-Miocene, stem odontocetes are known for their procumbent incisors and their function has been the subject of much speculation. Notable among these were and several related taxa from New Zealand. Though some studies hypothesise the function of these teeth was for thrusting, the here described has unique teeth which might have formed a cage around small fish.