Urkudelphis
Urkudelphis is an extinct genus of cetacean endemic to Ecuador, a tropical dolphin small in size. The type species, Urkudelphis chawpipacha, was described in 2017 based in a single skull of a juvenile and auditory bones in the Dos [Bocas Formation] of Ecuador. It was an ancestor of river dolphins It is also one of the only dolphin fossils in tropical waters.