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Groundbreaking Discovery: Fossilized Bones Reveal Air Sacs in Alvarezsaurians – A Key Feature for Modern Bird Flight

April 2, 2025
in Social Science
Reading Time: 2 mins read
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First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)
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First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)

image: 

Live reconstruction of a Bonapartenykus specimen by Abel G. Montes.


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Credit: Meso et al. 2025, CC-BY 4.0 (

Article URL:

Article title: First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)

Author countries: Argentina, China

Funding: We thank P. Chafrat from Museo Patagónico de Ciencias Naturales, General Roca, Río Negro Province, Argentina. The authors gratefully acknowledge “Fundacion Patagonica de Ciencias Naturales” and “Sanatorio Juan XXIII” for making the CT images possible. MP was supported by the Faculty of Science of The Chinese University of Hong Kong. We thank Hans-Dieter Sues, an anonymous reviewer, and the editorial team of PLOS ONE for their comments which improved the quality of this manuscript.



Journal

PLOS One

DOI

10.1371/journal.pone.0320121

Article Title

First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)

Article Publication Date

2-Apr-2025

COI Statement

The authors have declared that no competing interests exist.

Media Contact

Hanna Abdallah

PLOS

onepress@plos.org

Journal

PLOS One

DOI

10.1371/journal.pone.0320121

Article Title

First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)

Article Publication Date

2-Apr-2025

COI Statement

The authors have declared that no competing interests exist.

bu içeriği en az 2000 kelime olacak şekilde ve alt başlıklar ve madde içermiyecek şekilde ünlü bir science magazine için İngilizce olarak yeniden yaz. Teknik açıklamalar içersin ve viral olacak şekilde İngilizce yaz. Haber dışında başka bir şey içermesin. Haber içerisinde en az 12 paragraf ve her bir paragrafta da en az 50 kelime olsun. Cevapta sadece haber olsun. Ayrıca haberi yazdıktan sonra içerikten yararlanarak aşağıdaki başlıkların bilgisi var ise haberin altında doldur. Eğer yoksa bilgisi ilgili kısmı yazma.:
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Keywords

Tags: air sacs in theropodsalvarezsaurians and flight adaptationsaxial skeleton of coelurosauriaBonapartenykus reconstructionCT imaging in fossil studiesevolutionary biology of birdsfossilized bones of alvarezsauriansfunding for paleontological researchmodern bird flight evolutionpaleontology discoveries in Argentinapneumaticity in dinosaur skeletonssignificance of air sacs in birds
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