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.

2024年3月22日 · The largest river dolphin fossil has been found — thousands of miles from its nearest living relative, reports an international group of paleontologists in Science Advances. The team, led by University of Zurich (UZH) paleontologists, located the fossil in the Peruvian Amazon. It measures nearly 12 feet long and dates back about 16 million years.

The baiji (Lipotes vexillifer), is a probably extinct species of freshwater dolphin native to the Yangtze river system in China. It is thought to be the first dolphin species driven to extinction due to the impact of humans.

During the early Miocene (about 20 million years ago), echolocation developed in its modern form. Various extinct dolphin-like families flourished belonging to Kentriodontidae, which were small to medium-sized toothed cetaceans and thought likely to include ancestors of some modern species. Kentriodontids date to the late Oligocene to late Miocene.

2024年3月26日 · A newly identified ancient skull found in Peru has revealed an extinct giant called Pebanista yacuruna that offers insight into the evolution of freshwater dolphins.

2024年11月15日 · A team of researchers led by SNSB paleontologist Gertrud Rößner has discovered a new prehistoric dolphin species. The dolphin lived approximately 22 million years ago in a coastal region of the Miocene Paratethys Sea in present-day Upper Austria.

2024年2月21日 · The dolphin-like fossil is seen to have strange, splayed-out teeth, suggesting that it may have hunted prey by trapping fish in a toothy cage, according to a new paper in the Journal of the Royal...

2023年6月15日 · Scientists have discovered a new species of prehistoric dolphin with strange, tusk-like teeth that have never been seen in living cetaceans. The odd-looking creature swam the waters off the coast...

2020年7月9日 · Now researchers have confirmed that an ancient dolphin that lived during the Oligocene Epoch — 33.9 million to 23 million years ago — was the first cetacean (a type of …

2024年11月5日 · A team of researchers led by SNSB paleontologist Gertrud Rößner has discovered a new prehistoric dolphin species. Analyses of its inner ear confirm that this dolphin had excellent hearing...