Search results
Results from the WOW.Com Content Network
Pakicetus (meaning 'whale from Pakistan') is an extinct genus of amphibious cetacean of the family Pakicetidae, which was endemic to Indian Subcontinent during the Ypresian (early Eocene) period, about 50 million years ago. [2]
Robert West was the first to identify pakicetids as cetaceans in 1980 and, after discovering a braincase, Phillip Gingerich and Donald Russell described the genus Pakicetus in 1981. During the following two decades, more research resulted in additional pakicetid cranial material and by 2001 postcranial material for the family had been described.
When his technician accidentally broke one of the skulls they had found, Thewissen recognised the ear structure of the auditory bulla, formed from the ectotympanic bone in a shape which is highly distinctive, found only in the skulls of cetaceans both living and extinct, including Pakicetus. [3]
Whale populations were drastically reduced in the 20th century from intensive whaling, which led to a moratorium on hunting by the International Whaling Commission in 1982. [7] Smaller cetaceans are at risk of accidentally getting caught by fishing vessels using, namely, seine fishing , drift netting , or gill netting operations.
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.
A former United States Postal Service employee in Charlotte, North Carolina was sentenced to prison for stealing more than $20 million worth of checks, federal authorities said. Nakedra Shannon ...
The fast nutrition facts on this cooking staple. Can you eat bay leaves? The answer varies, but the most important thing to know is that you shouldn't eat one whole, whether or not it's been cooked.
Tonka Beans. This wrinkly legume from South America underwent a recent boom in the fine-dining world due to its notes of vanilla, almond, and cinnamon, but it has actually been illegal in the U.S ...