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Tetrapod limb ecomorphology inferring ecology during dinosaur-bird transition

Project description

Limb morphology and habitat diversification in birds and dinosaurs

Birds are the sole surviving lineage in the dinosaur family tree. However, little is known about the dinosaur to bird transition – a key event in vertebrate evolution. The unparalleled Mesozoic Jehol and Yanliao fossil assemblages from China include the best-known Mesozoic birds and feathered non-avian dinosaurs, offering unprecedented data on their diversification. The EU-funded Dino-Bird Ecology project will use pioneering 3D imaging methods to visualise limb morphology in bird-like dinosaurs and early birds during the dinosaur-bird transition. Through geometric morphometrics and finite element analyses based on a broad 3D database of extant tetrapods, the project will constrain the liaison between the foot and hand morphology and habitat ecology.

Objective

Birds are the only extant dinosaurs and have achieved enormous diversity, spanning a wide range of ecologies including substantial variation in habitat use. However, ecological diversification in the earliest birds and their closest dinosaurian relatives is poorly characterised. This presents a fundamental knowledge gap regarding the dinosaur-bird transition – a major event in vertebrate evolution. The unparalleled Mesozoic Jehol and Yanliao fossil assemblages from China include most known Mesozoic birds and feathered non-avian dinosaurs, revealing unprecedented data on this remarkable transition. I will use cutting-edge 3D imaging methods to visualise the limb morphology in early birds and bird-like dinosaurs. We will quantitatively constrain the link between the foot/hand morphology and habit ecology using geometric morphometrics and finite element analyses based on a large 3D database of extant tetrapods. The results will be used to infer the habitat use (e.g. arboreal, terrestrial, aquatic) of important fossil species during the dinosaur-bird transition, with a focus on early birds and closely related dinosaurs. This will add considerably to understanding of palaeoecology during dinosaur-bird transition, and clarify contentious hypotheses of the origin of bird flight. Our findings will also provide a test of ecological explanations for the extinction of the enantiornithine birds, and the ultimate survival and success of Ornithuromorpha, which includes all extant birds. Hosted in a world-class palaeontology lab in Oxford and trained by a supervisor leading the quantitative macroevolutionary research, this proposal will bring cutting-edge 3D morphometrics and statistical comparative skills to the researcher, ensuring her a promising independent future career. The long-term connection between key institutes of UK and China built in this proposal will also benefit both countries in not only research profiles, but also in public engagement and education.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2020

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Coordinator

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
Net EU contribution
€ 212 933,76
Address
WELLINGTON SQUARE UNIVERSITY OFFICES
OX1 2JD Oxford
United Kingdom
Region
South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 212 933,76