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:7/10/2014)... centres around a family of enzymes known as heme ... in their active site. At the centre of the ... oxidised (ferryl) when a reacting heme is in an ... remained unanswered for decades is whether this oxidation involves ... (OH). Resolving this fundamental question has implications for understanding ...
(Date:7/10/2014)... New research from The University of Texas Health Science ... it Real (IYG), a health education program designed to ... significantly reduce dating violence behaviors among minority youth. , ... 10 percent of high school youth are victims of ... than 20 percent are victims of emotional dating violence. ...
(Date:7/10/2014)... Spanish National Cancer Research Centre (CNIO) Macromolecular Crystallography ... a protein called BuD to DNA in order ... Montoya, the researcher who led the study, says ... edit the instructions contained in the genome to ... The study is published in the journal ...
Breaking Biology News(10 mins):Neutron crystallography solves long-standing biological mystery 2Neutron crystallography solves long-standing biological mystery 3It's Your Game ... Keep It Real reduces dating violence among minority youth 2CNIO scientists develop technology to redirect proteins towards specific areas of the genome 2
... sequenced an ancient RNA genome of a barley virus once ... back at least 2,000 years and revealing how intense farming at ... the University of Warwick have detected and sequenced the RNA genome ... found at a site near the River Nile in modern-day Egypt. ...
... Research UFZ present CLIMBER: Climatic niche characteristics ... on the climatic niche characteristics of 397 European butterflies ... provided in this dataset is of great relevance for ... high quality standards and open access, data ready to ...
... establish a state of the art Microbiorefinery (MBR) to ... Fossil fuel sources currently provide the basis for ... supplies and environmental considerations mean there is a growing ... The new facility, in collaboration with ...
Cached Biology News:RNA sequencing of 750-year-old barley virus sheds new light on the Crusades 2RNA sequencing of 750-year-old barley virus sheds new light on the Crusades 3Unique new dataset CLIMBER: Climatic niche characteristics of the butterflies in Europe 2University of Liverpool to establish microbiorefinery facility 2
(Date:1/15/2014)...   Niagara Thermal Products is proud to announce ... LLC ("B3") as the critical thermal component supplier in ... Army Corps of Engineers.  B3 has developed the only ... and destroys VOCs and other chemical pollutants, allergens and ...
(Date:1/15/2014)... 15, 2014 Cynvenio, a cancer diagnostics ... the genomic analysis of tumor cells in the bloodstream, ... web-based cancer decision support application powered by CollabRx, Inc. ... ClearID™ genomic test, Therapy Finder will provide breast cancer ...
(Date:1/15/2014)... Jan. 15, 2014 ­ RedBrick Health , a ... technology, today announces that EmblemHealth , the ... company, is now providing the RedBrick Compass health assessment, ... to all of its members. EmblemHealth is among the ...
(Date:1/15/2014)... A study has been launched to test whether technology ... help to tackle the problem of obesity.  This unique healthcare ... based in Stowmarket) and academics at University Campus Suffolk is ... which is inspired by equipment used to collect data about ...
Breaking Biology Technology:Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
... February 26 Arpida Ltd.,(SWX: ARPN) today reported that ... intravenous iclaprim in its first indication,complicated Skin and Skin ... weeks., Arpida has agreed with the U.S. Food ... rolling process. Using a ,rolling NDA, allows modules,within the ...
... Therapeutics,Inc. (Nasdaq: TPTX ) today announced that ... TorreyPines, will present at Susquehanna,Financial Group,s Second Annual ... on Tuesday, March 4th at 11:00 a.m., Eastern., ... be available live. You can,access the webcast at: ...
... BURLINGTON, Mass., Feb. 26 Hyaluron ... development,services, continued to expand its business in ... and staffing increasing greater than 60 percent ... HCM acquired,additional space at its Burlington MA ...
Cached Biology Technology:Arpida Provides Update on Progress of New Drug Application for Intravenous Iclaprim 2Arpida Provides Update on Progress of New Drug Application for Intravenous Iclaprim 3TorreyPines Therapeutics to Present at Susquehanna Financial Group's Second Annual SIGnificant Options in Healthcare Conference 2HCM Announces Substantial Growth in 2007 2
... Degranulation, the secretion of cytoplasmic granules, ... inflammatory response of leukocytes (e.g. basophils, ... addition to histamine, these secretory granules ... cytokines, chemokines, and many proteases (Hallgren, ...
... Processing Service enables scientists who do not have ... software to have their biological samples tested for ... as easy as 1-2-3 Chose the ... samples from the S&S antibody menu. Send ...
... gel stain has bright fluorescence when bound to ... ideal for detecting dsDNA in gels using laser ... I nucleic gel acid stain has also ... and bandshift assays. One mL stains 100 minigels. ...
... techniques are defined by the author of ... This valuable hardcover guide includes hundreds of ... references. More than 300 pages detail the ... preparation from selection and design of ...
Biology Products: