Navigation Links
New Montana State research sheds light on South Pole dinosaurs
Date:8/4/2011

tology laboratory and analyze bones in a rare collection in Australia's Melbourne Museum.

Woodward analyzed the bone tissue of 17 dinosaurs that lived 112 to 100 million years ago during the latter part of the Early Cretaceous Period. All but one of the dinosaurs in her study were plant eaters. All lived in the Antarctic Circle in what is now known as the Australian state of Victoria.

Also participating in the study were the authors of the original study: Anusuya Chinsamy at the University of Cape Town in South Africa, Tom Rich at the Melbourne Museum and Patricia Vickers-Rich at Monash University in Australia.

The three scientists who conducted the original study welcomed her analysis and didn't mind that she falsified their hypothesis, Woodward said. She added that the new study looked at more dinosaur bones than the original study because more bones from the polar dinosaurs were available. Paleontologists have been adding to the collection over the past 25 to 30 years.

The original study looked at the bone microstructure of the polar dinosaurs and concluded that the differences they saw indicated that some dinosaurs survived harsh polar conditions by hibernating, while others evolved in a way that allowed them to be active year-round, Woodward said.

The new study showed that all but the youngest dinosaurs had "Lines of Arrested Growth" or LAGs, Woodward said. Since the hibernation hypothesis was based on the presence or absence of LAGs, the new study falsified the hypothesis.

LAGSs, in a bone cross section, look like tree rings, Woodward said. Like tree rings, they are formed when growth temporarily stops.

"Research on animals living today suggests that LAGs form annually, regardless of latitude or climate," Woodward said. "Like tree rings, LAGs can be counted to age an animal, so that the absence of these marks likely indicates a dinosaur was less than a year old. These marks have also been fou
'/>"/>

Contact: Evelyn Boswell
evelynb@montana.edu
406-994-5135
Montana State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Montana State University researchers find gene that regulates molds resistance to drugs
2. Montana State researchers receive grant to study algae as a source of biofuel
3. Montana State partnership receives $66.9M for carbon sequestration
4. Montana State team finds Yellowstone alga that detoxifies arsenic
5. Montana State grads work helps diagnose skin cancer without a biopsy
6. New dinosaur species from Montana
7. Montana State researcher discovers that bile sends mixed signals to E. coli
8. Montana State University historian wins prize for book on Montana, Utah copper mines
9. Montana State grad student to study unique soil around Yellowstone hot springs
10. Montana State researchers say Triceratops, Torsaurus were same dinosaur at different stages
11. Montana State University offers 6 new biomedical technologies for licensing
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... , July 31, 2015 The 10 th ... held by BGI from October 22-25, 2015, in Shenzhen ... The conference is celebrating its 10 th anniversary this year. ... the world,s most influential annual meetings in the ,omics, fields, ... scientific gatherings. ICG-10 focuses on recent breakthroughs ...
(Date:7/23/2015)... BEDFORD, Mass., July 23, 2015 Aware, Inc. (NASDAQ: ... services, today reported financial results for its second quarter ended ... quarter of 2015 was $4.5 million, a decrease of 33% ...  Net income in the second quarter of 2015 was $0.3 ... million, or $0.04 per diluted share, in the same period ...
(Date:7/21/2015)... YORK , July 21, 2015 ... systems, as seen in the recent U.S. Office ... a solution to the infosec conundrum, but developers ... is stored. To address this dilemma, Biometrics-as-a-Service provider ... its Biometric Tokenization SDK for third party integration. ...
Breaking Biology News(10 mins):The 10th International Conference on Genomics (ICG-10) to Open in October 2Aware, Inc. Reports Second Quarter 2015 Financial Results 2Aware, Inc. Reports Second Quarter 2015 Financial Results 3Aware, Inc. Reports Second Quarter 2015 Financial Results 4Aware, Inc. Reports Second Quarter 2015 Financial Results 5Aware, Inc. Reports Second Quarter 2015 Financial Results 6HYPR Corp. Launches Industry First Biometric Tokenization Platform 2HYPR Corp. Launches Industry First Biometric Tokenization Platform 3HYPR Corp. Launches Industry First Biometric Tokenization Platform 4
... there seems to be super-sized confusion about its population status. ... thing is clear definite changes have occurred to spiny ... Commercial fishermen haul up nets loaded with so many ... considered a nuisance. However, fishery management plans have set quotas ...
... More Than 10 Million Fingerprints per ... a provider of high-precision biometric identification ... a packaged hardware and software solution ... fingerprint and face matching for high-volume/high-speed ...
... cumbersome wiring and a sharp metal electrode. But a ... going "wireless." And it,s a unique collaboration between ... a remarkable new way to use light to activate ... associate professor in the neurosciences department in the Case ...
Cached Biology News:UNH researchers studying spiny dogfish, Gulf of Maine's mini shark 2UNH researchers studying spiny dogfish, Gulf of Maine's mini shark 3New MegaMatcher Accelerator Boosts Speed for High-Volume Biometric Identification and Database Duplicate Searching 2New MegaMatcher Accelerator Boosts Speed for High-Volume Biometric Identification and Database Duplicate Searching 3Case Western Reserve researchers develop 'wireless' activation of brain circuits 2Case Western Reserve researchers develop 'wireless' activation of brain circuits 3
(Date:7/31/2015)... ... July 31, 2015 , ... R-Biopharm ... quantification of partially hydrolyzed gluten in foods, has been accepted by AOAC International ... “Partially Hydrolyzed Gluten in Fermented Cereal-Based Products by R5 Competitive ELISA,” based on ...
(Date:7/30/2015)... USA (PRWEB) , ... July 30, 2015 , ... ... microsystems, has appointed Francois Vieillard as Sales & Marketing Director. , With ... Francois Vieillard will be responsible for reinforcing Tronics’ business development activities worldwide. He ...
(Date:7/30/2015)... Kan. , July 30, 2015   ... a pet therapeutics company focused on the licensing, ... companion animals, today announced that its strategic partner ... a dose confirmation study of AT-016, an adipose-derived ... for the treatment of osteoarthritis pain in dogs. ...
(Date:7/30/2015)... -- HIGHLIGHTS:Q2 2015 Results (all changes are ... sales were $697 million compared to $701 million in ... 8%, and changes in foreign currency exchange rates decreased ... , By business unit, organic sales growth was ... SAFC Commercial. , Reported diluted EPS was $0.98 ...
Breaking Biology Technology:RIDASCREEN® Competitve Gliadin Receives AOAC Official First Action Status 2Tronics appoints Francois Vieillard as Sales and Marketing Director 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 2Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 3Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 4Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 5Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 6Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 7Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 8Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 9Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 10Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 11Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 12Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 13Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 14Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 15Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 16Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 17Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 18Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 19Sigma-Aldrich (NASDAQ - SIAL) Reports Q2 2015 Sales Of $697 Million And Adjusted Diluted EPS Of $1.01 20
... High Technologies and Canada,s National Institute for Nanotechnology (NINT) ... and unveiled a Hitachi H-95000 environmental transmission electron microscope ... of Japan. HEMiC will have two streams ... electron microscopy services to industrial and academic clients; and ...
... scale, the tiniest bridge of gold -- that made of ... new research by engineers at the University at Buffalo,s Laboratory ... experiments probing the characteristics of atomic-scale necks of gold that ... pushed into a flat, gold surface. An examination of these ...
... U.S. employers in understanding and navigating the new health ... The Vitality Group , an incentive-based wellness provider, ... publicly available and can be accessed on the company,s ... This paper provides an overview of ...
Cached Biology Technology:Hitachi partnership brings new tools and electron microscope reference center to Edmonton 2Narrowest bridges of gold are also the strongest, study finds 2The Vitality Group Helps U.S. Businesses Navigate New Legal Environment for Health and Wellness Programs 2
... VersArray ChipReader systems are highly sensitive laser ... microarrays. These are advanced scanners that meet ... and background level, and optimizing the signal ... top end of the range for increased ...
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... The involvement of integrins in vascular ... well-documented. The integrin family of cell adhesion ... heterodimers, composed of an a and b ... The structure and functional diversity of the ...
... --- a cocktail of 3 siRNAs specifically ... our most popular product. The siTrio reagent ... of your target gene when used under ... and confirmation of optimal transfection with one ...
Biology Products: