Palaeognathae, the extant avian clade comprising the flightless ratites and flight‐capable
tinamous (Tinamidae), is the sister group to all other living birds, and recent phylogenetic …

Tinamids are small cursorial birds with limited flight ability. They are phylogenetically nested
within a clade composed mostly of large, flightless birds (ratites). Their ability to fly and the …

Important transformations of the pectoral girdle are related to the appearance of flight
capabilities in the Dinosauria. Previous studies on this topic focused mainly on paravians yet …

The morphology of the pectoral girdle, the skeletal structure connecting the wing to the body,
is a key determinant of flight capability, but in some respects is poorly known among stem …

Lithornithids are volant stem palaeognaths from the Paleocene‐Eocene. Except for these
taxa and the extant neotropical tinamous, all other known extinct and extant palaeognaths …

Avian skeletal morphology is associated with locomotor function, including flight style,
swimming and terrestrial locomotion, and permits informed inferences on locomotion in …

The independent movements and flexibility of various parts of the skull, called cranial
kinesis, are an evolutionary innovation that is found in living vertebrates only in some …

Tinamous, one of the earliest diverging living avian lineages, consists of a Neotropical clade
of palaeognathous birds with a fossil record limited to the early Miocene–Quaternary of …

As a fundamental ecological aspect of most organisms, locomotor function significantly
constrains morphology. At the same time, the evolution of novel locomotor abilities has …

Ichthyornis has long been recognized as a pivotally important fossil taxon for understanding
the latest stages of the dinosaur–bird transition, but little significant new postcranial material …