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:10/16/2014)... Institute of Marine Science have received a 3-year, ... identify the streams and wetlands most vulnerable to ... local governments and citizens conserve these important ecosystems. ... of tidal-marsh observations first gathered by VIMS scientists ... can today,s researchers accurately map the slow but ...
(Date:10/16/2014)... women experienced improvements in vaginal atrophy, with no ... after 12 weeks of daily 10 milligram (mg) ... supplement previously shown to help relieve certain menopause ... reported in a poster at the North American ... "These data documented improved vaginal epithelium, without significant ...
(Date:10/15/2014)... admitted Johannes Gutenberg University Mainz (JGU) as a ... continues to maintain a significant nationwide standing in ... acceptance of Johannes Gutenberg University Mainz as a ... in the national and international competition for the ... Rhineland-Palatinate can be proud that Mainz University has ...
Breaking Biology News(10 mins):EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 2Johannes Gutenberg University Mainz joins Germany's Gauss-Allianz as a full member 3
... of a novel class of mutations that disrupt the function ... mutation created the appearance of an "illegitimate" microRNA (miRNA) recognition ... its normal form. In this study, the gene concerned ... muscle and the function of the derived protein is to ...
... it's rice farming or rice research, very few of Asia's ... in an industry that has been a foundation of the ... their children to be rice farmers, and even fewer young ... importance to the region. , However, an innovative project ...
... million people in sub-Saharan Africa, according to the World ... the virus have achieved limited success. But what if ... in that region of Africa ?chancroid ?was relatively easy ... much as 10-fold? , That may be the case, ...
Cached Biology News:A rice future for Asia 2Vaccine shown effective against chancroid 2Vaccine shown effective against chancroid 3
(Date:10/20/2014)... (PRWEB) October 20, 2014 Convey ... that a team from Iowa State University won first ... contest. Using a Convey HC-2ex, the team’s solution achieved ... times faster than the second place finisher. , Experts ... embarked upon the month long challenge, using a variety ...
(Date:10/20/2014)... , Oct. 20, 2014  GenVec, Inc. (NASDAQ: ... P. Horovitz , Ph.D., from its board of directors effective ... in August 2003, and served as its chairman from June ... on the Nominating and Corporate Governance and Audit Committees of ... more than a decade of dedicated service to GenVec, and ...
(Date:10/20/2014)... (PRWEB) October 20, 2014 Local veterinary ... in an investigational study of donor stem cells for ... stem cell therapy and has performed clinical stem cell ... study is to determine if a single injection of ... joints can help reduce pain and inflammation in the ...
(Date:10/19/2014)... 19, 2014 The Asia-Pacific Bromine ... in Asia-Pacific with analysis and forecast of revenue. ... Pacific Bromine Market report, to get an idea ... a glimpse of the segmentation in the Asia-Pacific ... and figures. , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , ...
Breaking Biology Technology:Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Zola P. Horovitz To Retire From GenVec Board 2Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3
... to $14.8 Million ... ... MINNEAPOLIS, May 5 ATS Medical, Inc. (Nasdaq:,ATSI), manufacturer and ... for the first,quarter ended March 29, 2008. Revenue for the quarter ...
... 5 Assay Designs, Inc., a leading,provider of ... sciences,and translational research markets, announced a collaboration on ... of South Carolina and,Dr. Jennifer Isaacs, laboratory. Under ... anti-Heat shock protein 90 (Hsp90) antibody for both,cell-based ...
... 5 NorthPoint Domain, an IC Sciences,company, announced ... at NYU Langone Medical Center to develop a ... care delivery.,Based on a shared commitment to excellence ... to provide clinicians with new,tools to inform, engage, ...
Cached Biology Technology:ATS Medical Announces Record Quarterly Revenue and Gross Profit 2ATS Medical Announces Record Quarterly Revenue and Gross Profit 3ATS Medical Announces Record Quarterly Revenue and Gross Profit 4ATS Medical Announces Record Quarterly Revenue and Gross Profit 5ATS Medical Announces Record Quarterly Revenue and Gross Profit 6ATS Medical Announces Record Quarterly Revenue and Gross Profit 7ATS Medical Announces Record Quarterly Revenue and Gross Profit 8ATS Medical Announces Record Quarterly Revenue and Gross Profit 9Assay Designs(TM) Announces Collaboration with Medical University of South Carolina (MUSC) 2NorthPoint Domain and NYU Vascular Associates Partner to Develop New Generation of Care Delivery Informatics Instruments 2NorthPoint Domain and NYU Vascular Associates Partner to Develop New Generation of Care Delivery Informatics Instruments 3
... modified nucleotide structure called a ?cap? ... most naturally-occurring eukaryotic mRNAs and many ... for a portion of the GTP ... reaction results in the synthesis of ...
... A modified nucleotide structure called a ... of most naturally-occurring eukaryotic mRNAs and ... Analog for a portion of the ... transcription reaction results in the synthesis ...
... A modified nucleotide structure called ... 5?-end of most naturally-occurring eukaryotic mRNAs ... Cap Analog for a portion of ... vitro transcription reaction results in the ...
... Orbital Shakers have the durability ... stacked 3-high, and the uniformity ... "soft shake" applications. Heavily ... systems, our stackers are designed ...
Biology Products: