Featured Research

from universities, journals, and other organizations

Woolly rhino fossil discovery in Tibet provides important clues to evolution of Ice Age giants

Date:
September 2, 2011
Source:
Natural History Museum of Los Angeles County
Summary:
Fossil discoveries from Tibet offer new insights into the origin of the cold-adapted Pleistocene megafauna. A new research paper posits that the harsh winters of the rising Tibetan Plateau may have provided the initial step towards cold-adaptation for several subsequently successful members of the late Pleistocene mammoth fauna in Europe, Asia, and to a lesser extent, North America. The Tibetan Plateau, therefore, may have been another cradle of the Ice Age giants.

Top: Woolly rhino skull and jaw. Bottom: Woolly rhino illustration by Julie Naylor.
Credit: Image courtesy of Natural History Museum of Los Angeles County

A new paper published in the journal Science reveals the discovery of a primitive woolly rhino fossil in the Himalayas, which suggests some giant mammals first evolved in present-day Tibet before the beginning of the Ice Age. The extinction of Ice Age giants such as woolly mammoths and rhinos, giant sloths, and saber-tooth cats has been widely studied, but much less is known about where these giants came from, and how they acquired their adaptations for living in a cold environment.

A team of geologists and paleontologists led by Xiaoming Wang from the Natural History Museum of Los Angeles County (NHM) and Qiang Li of Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, uncovered a complete skull and lower jaw of a new species of woolly rhino (Coelodonta thibetana) in 2007, at the foothills of the Himalayas in southwestern Tibetan Plateau.

"Cold places, such as Tibet, Arctic, and Antarctic, are where the most unexpected discoveries will be made in the future -- these are the remaining frontiers that are still largely unexplored," said the NHM's Dr. Wang.

There are dual connections between the new paper and the Natural History Family of Museums (including the Natural History Museum and the Page Museum at the La Brea Tar Pits). Dr. Wang contributed to NHM's Age of Mammals exhibition, which depicts the creation of the Himalayan Mountains and Tibetan Plateau, and subsequent climactic changes of the Pleistocene Ice Age. Additionally, the largest Ice Age megafauna collection in the world is excavated, researched, and displayed at the Page Museum.

The new rhino is 3.6 million years old (middle Pliocene), much older and more primitive than its Ice Age (Pleistocene) descendants in the mammoth steppes across much of Europe and Asia. The extinct animal had developed special adaptations for sweeping snow using its flattened horn to reveal vegetation, a useful behavior for survival in the harsh Tibetan climate. These rhinos lived at a time when global climate was much warmer and the northern continents were free of the massive ice sheets seen in the Ice Age later.

The rhino accustomed itself to cold conditions in high elevations and became pre-adapted for the future Ice Age climate. When the Ice Age eventually arrived around 2.6 million years ago, the new paper posits, the cold-loving rhinos simply descended from the high mountains and began to expand throughout northern Asia and Europe.

In addition to the new woolly rhino, the paleontologist team also uncovered extinct species of three-toed horse (Hipparion), Tibetan bharal (Pseudois, also known as blue sheep), chiru (Pantholops, also known as Tibetan antelope), snow leopard (Uncia), badger (Meles), as well as 23 other kinds of mammals.

The team's new fossil assemblage from Tibet offers new insights into the origin of the cold-adapted Pleistocene megafauna, which has usually been sought either in the arctic tundra or in the cold steppes elsewhere. This new evidence offers an alternative scenario: the harsh winters of the rising Tibetan Plateau may have provided the initial step towards cold-adaptation for several subsequently successful members of the late Pleistocene mammoth fauna in Europe, Asia, and to a lesser extent, North America. The Tibetan Plateau may have been another cradle of the Ice Age giants.

"This discovery clarifies the origin of the woolly rhinoceros -- and perhaps much of the now extinct, cold-adapted, Pleistocene Eurasian megafauna -- as the high-altitude environments of the Zanda Basin of the primordial Pliocene Himalayas," said H. Richard Lane of the National Science Foundation (NSF)'s Division of Earth Sciences.

Financial support for this research is provided by Chinese National Natural Science Foundation, Chinese Academy of Sciences, National Geographic Society, and National Science Foundation of the United States.


Story Source:

The above story is based on materials provided by Natural History Museum of Los Angeles County. Note: Materials may be edited for content and length.


Journal Reference:

  1. Tao Deng, Xiaoming Wang, Mikael Fortelius, Qiang Li, Yang Wang, Zhijie J. Tseng, Gary T. Takeuchi, Joel E. Saylor, Laura K. Säilä, Guangpu Xie. Out of Tibet: Pliocene Woolly Rhino Suggests High-Plateau Origin of Ice Age Megaherbivores. Science, 2011; 333 (6047): 1285-1288 DOI: 10.1126/science.1206594

Cite This Page:

Natural History Museum of Los Angeles County. "Woolly rhino fossil discovery in Tibet provides important clues to evolution of Ice Age giants." ScienceDaily. ScienceDaily, 2 September 2011. <www.sciencedaily.com/releases/2011/09/110901142100.htm>.
Natural History Museum of Los Angeles County. (2011, September 2). Woolly rhino fossil discovery in Tibet provides important clues to evolution of Ice Age giants. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2011/09/110901142100.htm
Natural History Museum of Los Angeles County. "Woolly rhino fossil discovery in Tibet provides important clues to evolution of Ice Age giants." ScienceDaily. www.sciencedaily.com/releases/2011/09/110901142100.htm (accessed April 16, 2014).

Share This



More Fossils & Ruins News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

French Historians Fight to Save Iconic La Samaritaine Buildings

French Historians Fight to Save Iconic La Samaritaine Buildings

AFP (Apr. 15, 2014) — Parisians and local historians are fighting to save one of the French capital's iconic buildings, the La Samaritaine department store. Duration: 01:42 Video provided by AFP
Powered by NewsLook.com
Bee Fossils Provide Insight Into Ice Age Environment

Bee Fossils Provide Insight Into Ice Age Environment

Newsy (Apr. 12, 2014) — Archeologists have found many fossils in the La Brea Tar Pits, including those of saber-tooth tigers and mammoths. Video provided by Newsy
Powered by NewsLook.com
Daddy Longlegs Once Had 4 Eyes

Daddy Longlegs Once Had 4 Eyes

Newsy (Apr. 11, 2014) — A new fossil has revealed daddy longlegs one had an extra pair of eyes. Modern species retain the gene for the extra pair but never develop them. Video provided by Newsy
Powered by NewsLook.com
Rosa Parks Memorabilia Remain in NY Warehouse

Rosa Parks Memorabilia Remain in NY Warehouse

AP (Apr. 10, 2014) — A lifetime's worth of Rosa Parks' belongings, including her Presidential Medal of Freedom, sits unseen and unsold in a New York warehouse. (April 10) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

More Coverage


A Wild and Woolly Discovery: Tibetan Expedition Ends With Prehistoric Find

Sep. 16, 2011 — Researchers have uncovered the oldest known species of woolly rhino. They found the complete skull and lower jaw of a previously unknown and long-extinct ... read more
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins