ArticleScientific reports2021
Quantitative assessment of the vertebral pneumaticity in an anhanguerid pterosaur using micro-CT scanning.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 14 citations in OpenAlex.
- Inside a duck-billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia.Anatomical record (Hoboken, N.J. : 2007) · 2026Article
- Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs.Journal of anatomy · 2026Article
- The origin and evolution of air sacs in pterosaurs and their forerunners.Journal of anatomy · 2026Article
- The influence of soft tissue volume on estimates of skeletal pneumaticity: implications for fossil archosaurs.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Development of postcranial pneumaticity in the turkey (Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Article
- Article
- Giant dwarf crocodiles from the Miocene of Kenya and crocodylid faunal dynamics in the late Cenozoic of East Africa.Anatomical record (Hoboken, N.J. : 2007) · 2022Article
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Authors and funding
5 authors at 4 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Research on the postcranial skeletal pneumaticity in pterosaurs is common in the literature, but most studies present only qualitative assessments. When quantitative, they are done on isolated bones. Here, we estimate the Air Space Proportion (ASP) obtained from micro-CT scans of the sequence from the sixth cervical to the fourth dorsal vertebra of an anhanguerine pterosaur to understand how pneumaticity is distributed in these bones. Pneumatisation of the vertebrae varied between 68 and 72% of their total volume. The neural arch showed higher ASP in all vertebrae. Anhanguerine vertebral ASP was generally higher than in sauropod vertebrae but lower than in most extant birds. The ASP observed here is lower than that calculated for the appendicular skeleton of other anhanguerian pterosaurs, indicating the potential existence of variation between axial and appendicular pneumatisation. The results point to a pattern in the distribution of the air space, which shows an increase in the area occupied by the trabecular bone in the craniocaudal direction of the vertebral series and, in each vertebra, an increase of the thickness of the trabeculae in the zygapophyses. This indicates that the distribution of pneumatic diverticula in anhanguerine vertebrae may not be associated with stochastic patterns.
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