Dorudon ("spear-tooth") is a genus of extinct basilosaurid ancient whales that lived alongside Basilosaurus 41.03 to 33.9 million years ago in the Eocene. It was a small whale, with D. atrox measuring 5 metres (16 ft) long and weighing 1–2.2 metric tons (1.1–2.4 short tons).

2021年10月6日 · This month we look back at the cetacean evolutionary tree and talk about the Dorudon (Dorudon atrox). This primitive cetacean swam the ancient Eocene oceans of what is now Egypt and the United States, along with the Basilosaurus.

Size: Dorudon atrox is estimated to have been around 5 meters in length (approximately 16 feet) as an adult, similar in size to the modern beluga (Delphinapterus leucas). Anatomy: Dorudon, along with other basilosaurids, differed from all modern cetaceans in …

About the size of the modern beluga whale, Dorudon atrox is an important find for scientists. It's skeletal structure resembles modern whales, but retains some features that give clues about how this group of successful marine mammals evolved from land-living ancestors.

2017年3月6日 · An in-depth profile of Dorudon, including this prehistoric whale's characteristics, behavior and habitat.

Dorudon is a prehistoric whale which lived approximately 41 to 33 million years ago during the Late Eocene Period. It was first discovered during the 19th century and was given the name Dorudon – a name which means “spear-toothed.”

Further along this evolutionary journey we find Dorudon, which lived 40 to 33 million years ago. This five-metre-long animal had proper flippers and tiny hind legs. It lived entirely in the water and was a good swimmer. It also gave birth to its young underwater.