Some pterosaurs would flap, others would soar

A recent study published in the Journal of Vertebrate Paleontology has confirmed that some pterosaurs were capable of both flapping and soaring flight. Researchers from the University of Michigan and other institutions analyzed rare three-dimensional fossils of two large-bodied azhdarchoid pterosaur species, one of which is newly identified as Inabtanin alarabia. The fossils, dating back to the late Cretaceous period, were remarkably preserved and allowed for detailed examination of their internal bone structures using high-resolution CT scans. The study found that Arambourgiania philadelphiae, a known giant pterosaur, had a wing structure adapted for soaring, while Inabtanin alarabia exhibited features suited for flapping flight. This discovery suggests that flight styles among pterosaurs varied based on their size and bone structure, raising questions about the evolution of flight mechanics in these ancient creatures. The findings provide a framework for further research into the relationship between internal bone structure and flight capabilities in pterosaurs, which were the earliest and largest vertebrates to achieve powered flight.

- Some pterosaurs could flap their wings while others soared.

- The study analyzed rare three-dimensional fossils from the late Cretaceous period.

- Arambourgiania philadelphiae was adapted for soaring, while Inabtanin alarabia was suited for flapping.

- The research opens new avenues for understanding the evolution of flight mechanics in pterosaurs.

- The findings highlight the diversity of flight styles based on pterosaur size and bone structure.