Featured Research

from universities, journals, and other organizations

World's Oldest Duck-Billed Dinosaur Discovered

Date:
January 20, 1999
Source:
Southern Methodist University
Summary:
The world's oldest and most primitive duck-billed dinosaur, dating back more than 95.5 million years, has been discovered by paleontologist Jason Head of the Department of Geological Sciences in Southern Methodist University's Dedman College of Humanities and Sciences. Discovery of the specimen near Flower Mound in North Central Texas will require that dinosaur researchers re-think the long-held notion that duck-billed dinosaurs originated in eastern Asia more than 90 million years ago, predicted Head, whose findings are being published in the current issue of the Journal of Vertebrate Paleontology.

DALLAS (SMU) -- The world's oldest and most primitive duck-billed dinosaur, dating back more than 95.5 million years, has been discovered by paleontologist Jason Head of the Department of Geological Sciences in Southern Methodist University's Dedman College of Humanities and Sciences.

Related Articles


Discovery of the specimen near Flower Mound in North Central Texas will require that dinosaur researchers re-think the long-held notion that duck-billed dinosaurs originated in eastern Asia more than 90 million years ago, predicted Head, whose findings are being published in the current issue of the Journal of Vertebrate Paleontology.

"This makes North America a good candidate as the place of origin for duck-billed dinosaurs," said Head.

The dinosaur, named Protohadros byrdi, belongs to a family of plant-eaters known as hadrosaurs that lasted for about 30 million years before becoming extinct at the end of the Cretaceous Period about 65 million years ago. The skull, ribs and feet of Head's specimen were found in early 1994 by Dallas Paleontological Society member Gary Byrd as he was examining a road cut in Flower Mound. Byrd and a team from SMU excavated the remains.

Head did the analysis of the remains. The specimen is thought to have been almost fully grown and was about 15-20 feet long and 6 feet high at the shoulder. It is thought to have walked on both four and two legs and had a complex way of chewing its food. A cause of death could not be determined. At the time the protohadros was alive, a shallow seaway existed through the middle of North America, and North Texas was a wooded marsh, similar to present-day South Louisiana.

Head grew up in Walled Lake, Mich., and received a Bachelor of Science degree in biology from the University of Michigan in 1995. He received a Master of Science degree in geology from SMU in 1997 and is working on his Ph.D.


Story Source:

The above story is based on materials provided by Southern Methodist University. Note: Materials may be edited for content and length.


Cite This Page:

Southern Methodist University. "World's Oldest Duck-Billed Dinosaur Discovered." ScienceDaily. ScienceDaily, 20 January 1999. <www.sciencedaily.com/releases/1999/01/990120075457.htm>.
Southern Methodist University. (1999, January 20). World's Oldest Duck-Billed Dinosaur Discovered. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/1999/01/990120075457.htm
Southern Methodist University. "World's Oldest Duck-Billed Dinosaur Discovered." ScienceDaily. www.sciencedaily.com/releases/1999/01/990120075457.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Fossils & Ruins News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Gerbils, Not Rats, Might Be To Blame For The Black Death

Gerbils, Not Rats, Might Be To Blame For The Black Death

Newsy (Feb. 24, 2015) The "black death" that killed tens of millions of people has been blamed on rats for years, but now researchers say they may have gotten a bad rap. Video provided by Newsy
Powered by NewsLook.com
Timbuktu Manuscripts Face an Uncertain Future

Timbuktu Manuscripts Face an Uncertain Future

AFP (Feb. 23, 2015) Two years ago a large number of manuscripts were taken from Timbuktu for safe keeping. Now the question is whether to return them. Duration: 02:50 Video provided by AFP
Powered by NewsLook.com
How Did A Mummy End Up In A 1,000-Year-Old Buddha Statue?

How Did A Mummy End Up In A 1,000-Year-Old Buddha Statue?

Newsy (Feb. 23, 2015) A CT scan has revealed a mummified Chinese monk inside a Buddha statue. The remains date back about 1,000 years. Video provided by Newsy
Powered by NewsLook.com
Rare First Folio Arrives at Shakespeare's Globe Theatre

Rare First Folio Arrives at Shakespeare's Globe Theatre

Reuters - Light News Video Online (Feb. 23, 2015) A rare First Folio discovered in a French library arrives at the Shakespeare&apos;s Globe Theatre in London, where the Bard&apos;s plays were first performed. Elly Park reports. Video provided by Reuters
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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