In contrast to the clawed forelimbs of their dinosaurian ancestors, the highly specialized wings of birds are exclusively adapted for flight. To compensate for this functional constraint, the avian neck became the equivalent to an arm. The goal of the EU-funded EDDI project is to find out when and how the highly versatile neck evolved.
The neck has intrigued researchers for centuries because it is highly variable in terms of vertebral number and shape. There are the relatively short and massive neck of crocodiles, the highly mobile and slender neck of swans or the extremeley long and gigantic neck in sauropodomorph dinosaurs.
To put it in a nutshell, the EU-funded project EDDi project looks at three aspects involved in the evolution of the vertebral column in archosaurs (i.e. crocodilians, birds and extinct dinosaurs). Morphometric analyses allow us to quantify the morphology of the bones in living and fossil taxa. Developmental studies provide new insights into the morphogenesis of the vertebral column. And anatomical work in combination with state-of-the-art network approaches enables us reveal the evolutionary modifications of the vertebral column in deep time and to better understand the adaptability of archosaurs.