HOME >> BIOLOGY >> NEWS
Rare Fossil Shows Theropod Dinosaurs Are Fast, Dangerous 'Turbocharged' Reptiles

Oregon State University (OSU) scientists funded by the National Science Foundation (NSF) have completed a study of what they say is the world's most perfectly preserved fossil of a theropod, or meat-eating dinosaur. They believe it provides an unprecedented view of the biology of these ancient reptiles.

The bottom line? You wouldn't want to meet a theropod in a dark alley. The research, to be published in this week's issue of the journal Science, offers insights into dinosaur metabolism, the warm-blooded versus cold-blooded debate, the question of whether or not dinosaurs might have been the ancestors of birds, and the biology that helped them dominate the world -- and eventually may have led to their extinction.

"This exquisitely preserved fossil shows that theropod dinosaurs had the ventilatory machinery to support periods of high activity, but that they lacked bird-style lungs or other anatomical features suggestive of a sustained high metabolic rate," according to Zoe Eppley, program director in NSF's division of integrative biology and neuroscience, which funded the research. "This find adds further support to the view that these dinosaurs were not warm-blooded."

This fossil is helping confirm that "the dinosaurs were indeed, by definition, cold-blooded, and that in all likelihood, birds are not the descendants of any known group of dinosaurs," said Nicholas Geist, a paleobiologist at OSU. "The extraordinary condition of this fossil allows us to 'hang some meat on the bones' of these animals and bring them back to life a bit. It's almost like a dinosaur dissection."

What that analysis reveals, Geist said, is an animal that had the best of both worlds. Like other cold-blooded animals, theropod dinosaurs had low metabolic rates while at rest, an excellent strategy for conserving energy. But their enhanced lung ventilation capacity gave them the potential for the aggressive, extended activity ty
'"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-306-1070
National Science Foundation
21-Jan-1999


Page: 1 2

Related biology news :

1. Fossil genes reveal how life sheds form and function
2. Fossils reveal direct link between global warming and genetic diversity in wildlife
3. Methane and mini-horses: Fossils reveal effects of global warming
4. Fossil teeth reveal recent origin of human growth pattern
5. Fossil teeth of extinct North American rhinos reveal an aquatic lifestyle similar to modern hippos
6. Fossil plants ties to ancient carbon redefined
7. Fossil mayflies can be used to weigh ancient atmospheres
8. Fossilized Emu Eggshells Give Clues To 65,000 Years Of Vegetation And Climate Changes In Australia
9. Scientists Use Fossilized Emu Eggshells To Discern Changes In Vegetation, Provide Additional Evidence Of Human Impact On Australian Landscape
10. Fossil Footprints Show Foot-Movement Similarity In Dinosaurs And Birds
11. A Missing Link Fossil Adds Foliage To The Early Human Ancestor Family Tree

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/17/2019)... ... September 17, 2019 , ... Dual-board certified periodontist ... the Australia Society of Implant Dentistry (ASID) Accreditation Courses. His lecture, “Understanding the ... Surgical Aspects of Modern Implant Dentistry course. Dr. Kim’s expertise comes from years ...
(Date:9/8/2019)... Md. (PRWEB) , ... September ... ... biotechnology market disrupter and leading supplier of innovative human mesenchymal stem/stromal cell ... first human umbilical cord (hUC) MSC paired cell and media system designed ...
(Date:8/29/2019)... CARLSBAD, Calif. (PRWEB) , ... ... ... daacro (Diagnostic Assessment and Clinical Research Organization), have recently passed ... combines CRO standards, hormone diagnostics and psychoneuroendocrine stress expertise, with a primary ...
Breaking Biology News(10 mins):
(Date:9/11/2019)... ... September 09, 2019 , ... Tunnell ... government agencies, announced that its president and CEO Maryann Gallivan has been accepted ... , The Forbes Council accepted Gallivan based on the role she and ...
(Date:9/11/2019)... N.J. (PRWEB) , ... September 10, 2019 , ... ... development, and manufacturing solutions for drugs, biologics, gene therapies, and consumer health products, ... Forum, to be held at the Bausparkasse Schwäbisch Hall AG, Schwabisch Hall, Germany, ...
(Date:9/8/2019)... ... 2019 , ... Spartan Bioscience, the leader in on-demand DNA ... has been named Chief Financial Officer. , Spartan has also named former ... Additionally, Spartan has hired Steve Edgett as Executive Vice President to lead international ...
(Date:8/29/2019)... (PRWEB) , ... August 29, 2019 , ... ... chronic disease affecting grapevines, a feat they hope will ultimately help protect the ... Researchers including several Rochester Institute of Technology faculty and alumni sequenced the microbiome ...
Breaking Biology Technology:
Cached News: