The following transitions clearly describe the evolution of the horse: Hyracotherium --> Orohippus --> Mesohippus --> Miohippus --> Kalobatippus --> Parahippus --> Merychippus --> Hipparion --> Pliohippus --> Dinohippus --> Plesippus --> Equus.
The following fossils similarly identify the lineage for whales: Archaeocetes --> Pakicetus --> Ambulocetus --> Rhodocetus --> Basilosaurus.