Based on the information given, it should be noted that pakicetus refers to an extinct genus of the amphibious cetacean.
Ambulocetus: This is a genus of the early amphibious cetacean that came from the Kuldana Formation in Pakistan.
Rodhocetus: This is an extinct genus of the protocetid early whale that was known from the Lutetian of Pakistan.
Dorudon: This is a genus of the extinct ancient whales that lives 49 million years ago.
Odontocetes: It should be noted that the toothed whales are a part order of cetaceans which include porpoises, dolphins, etc.
Mysticetes: This is also known as Baleen whale. It's also known as whalebone whales and it's a parvorder of carnivorous marine mammals.
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