Oligocene extinctions Oligocene extinctions Arsinoitherium is an extinct mammal genus of the superorder Paenungulata. These species are rhinoceros-like herbivores that lived during the late Eocene and the beginning of the Oligocene, from 36 to 30 million years ago in areas of tropical rainforest. They were about seven feet tall and sported a pair of enormous conical horns on their snouts. They had as predators the creodonts. The name derives from Arsinoe, an Egyptian queen whose palace was near the site of discovery. While this was the only site where Arsinoitherium fossils were found, its earlier relatives lived in south-eastern Europe and Mongolia. ...more on Wikipedia about "Arsinoitherium"
Chilgatherium ("Chilga Beast" after the locality it was found) is the earliest and most primitive representative of the family Deinotheriidae. It is known from late Oligocene (27 to 28 million years old) fossil teeth found at Chilga , Ethiopia. So far, only a number of molar teeth have been found, but these are distinct enough that this animal can be identified with confidence. The teeth differ from those of Prodeinotherium, Deinotherium, and the various barytheres in various details, enough to show that this is a distinct type of animal, and has been placed in its own subfamily. Compared to later deinotheres, Chilgatherium was quite small, about midway between a large pig and a small hippo in size. It is not known if it shared the distinctive downward-curving tusks on the lower jaw that the later deinotheres had. ...more on Wikipedia about "Chilgatherium"
Embrithopoda is an extinct order of mammals which lived during the Oligocene. ...more on Wikipedia about "Embrithopoda"
Entelodonts were extinct relatives of modern pigs and other hoofed animals. They ranged across Asia and North America 45 to 25 million years ago. They stood seven feet tall and had a brain the size of a fist.They were scavengers(they ate dead animals)and they also ate plants. ...more on Wikipedia about "Entelodont"
Hyaenodon (" hyaena-toothed") was an extinct genus of Hyaenodonts, a group of Creodonts. Some species of this genus were amongst the largest terrestrial carnivorous mammals. ...more on Wikipedia about "Hyaenodon"
The Multituberculata are the only major branch of mammals to have become completely extinct, with no living descendants. Rodent-like, they first appeared in the Middle Jurassic, and became extinct in the early Oligocene. The structure of the pelvis in the Multituberculata suggests that they gave birth to tiny, helpless young, similar to modern marsupials. ...more on Wikipedia about "Multituberculata"
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Oligocene extinctions".
| MAIN PAGE | MAIN INDEX | CONTACT US |