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Scientists uncover the first clear evidence of air sacs in the fossilized bones of alvarezsaurian dinosaurs: the "hollow bones" which help modern day birds to fly

04.02.25 | PLOS

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First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)
Live reconstruction of aBonapartenykusspecimen by Abel G. Montes. Credit: Meso et al. 2025, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Article URL : https://plos.io/4hxJYYP

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.

PLOS One

10.1371/journal.pone.0320121

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

2-Apr-2025

The authors have declared that no competing interests exist.

Keywords

Anthropology Archaeology Bird Flight Bones Dinosaur Fossils Dinosaurs Fossilization Social Sciences

Article Information

Journal
PLOS One
DOI
10.1371/journal.pone.0320121
Article Publication Date
2025-04-02
Article Title
First unambiguous record of pneumaticity in the axial skeleton of alvarezsaurians (Theropoda: Coelurosauria)
COI Statement
The authors have declared that no competing interests exist.

Contact Information

Hanna Abdallah
PLOS
onepress@plos.org

How to Cite This Article

APA:
PLOS. (2025, April 2). Scientists uncover the first clear evidence of air sacs in the fossilized bones of alvarezsaurian dinosaurs: the "hollow bones" which help modern day birds to fly. Brightsurf News. https://www.brightsurf.com/news/LVD0305L/scientists-uncover-the-first-clear-evidence-of-air-sacs-in-the-fossilized-bones-of-alvarezsaurian-dinosaurs-the-hollow-bones-which-help-modern-day-birds-to-fly.html
MLA:
"Scientists uncover the first clear evidence of air sacs in the fossilized bones of alvarezsaurian dinosaurs: the "hollow bones" which help modern day birds to fly." Brightsurf News, Apr. 2 2025, https://www.brightsurf.com/news/LVD0305L/scientists-uncover-the-first-clear-evidence-of-air-sacs-in-the-fossilized-bones-of-alvarezsaurian-dinosaurs-the-hollow-bones-which-help-modern-day-birds-to-fly.html.