Forelimb reduction and digit loss were evolutionarily decoupled in oviraptorosaurian theropod dinosaurs
Theropod forelimbs exhibit wide morphological disparity, from the elongated wings of birds to the diminutive arms of T.rex.A wealth of work has sought to understand the evolution of bird flight via arm elongation, but despite widespread occurrences of forelimb reduction and digit loss throughout theropod dinosaurs, the evolutionary drivers behind t