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Ambulocetus (Latin ambulare "to walk" + cetus "whale") is a genus of early amphibious cetacean [a] from the Kuldana Formation in Pakistan, roughly 48 or 47 million years ago during the Early Eocene . It contains one species , Ambulocetus natans (Latin natans "swimming"), known solely from a near-complete skeleton.
Skeleton of Ambulocetus natans. Ambulocetid fossils have been found in Pakistan along the former coastline of Cimmeria. The sedimentary facies in which these fossils were found indicates that ambulocetids inhabited a shallow, swampy near-shore marine environment. [7] They may have occupied a similar ecological niche to river dolphins.
Johannes Gerardus Marie (Hans) Thewissen is a Dutch-American paleontologist known for his significant contributions to the field of whale evolution.Thewissen's fieldwork has led to the discovery of key fossils that have shed light on the transition of whales from land to water, including the discovery of Ambulocetus, Pakicetus, Indohyus, and Kutchicetus.
Ambulocetus, an ambulocetid ... Basilosaurids and dorudontids are the oldest obligate aquatic cetaceans for which the entire skeleton is known.
Skeleton of Ambulocetus natans The cetaceans (whales, dolphins and porpoises) are marine mammal descendants of land mammals . The pakicetids are an extinct family of hoofed mammals that are the earliest whales, whose closest sister group is Indohyus from the family Raoellidae .
Ambulocetus natans is a species of early amphibious archaeocete cetacean from the Kuldana Formation in Pakistan during the early Eocene, 48 or 47 million years ago.It is among the most completely known Eocene cetaceans, vital to the study of cetacean evolution and the transition from land to sea.
The list of extinct cetaceans features the extinct genera and species of the order Cetacea.The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates.
Reconstructed skeleton Ambulocetus natans is a species of early amphibious archaeocete cetacean from the Early Eocene Kuldana Formation in Pakistan, 48 or 47 million years ago. It is among the most completely known Eocene cetaceans, vital to the study of cetacean evolution and the transition from land to sea.