image:
Live reconstruction of a Bonapartenykus specimen by Abel G. Montes.
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Credit: Meso et al. 2025, CC-BY 4.0 (
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
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
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.
Cite Scienmag News
Gavin Prescott. (April 2, 2025). Groundbreaking Discovery: Fossilized Bones Reveal Air Sacs in Alvarezsaurians – A Key Feature for Modern Bird Flight. Scienmag. https://scienmag.com/groundbreaking-discovery-fossilized-bones-reveal-air-sacs-in-alvarezsaurians-a-key-feature-for-modern-bird-flight/
Gavin Prescott. "Groundbreaking Discovery: Fossilized Bones Reveal Air Sacs in Alvarezsaurians – A Key Feature for Modern Bird Flight." Scienmag, 2 April 2025, https://scienmag.com/groundbreaking-discovery-fossilized-bones-reveal-air-sacs-in-alvarezsaurians-a-key-feature-for-modern-bird-flight/. Accessed 3 September 2026.
Gavin Prescott. "Groundbreaking Discovery: Fossilized Bones Reveal Air Sacs in Alvarezsaurians – A Key Feature for Modern Bird Flight." Scienmag. April 2, 2025. https://scienmag.com/groundbreaking-discovery-fossilized-bones-reveal-air-sacs-in-alvarezsaurians-a-key-feature-for-modern-bird-flight/
