We developed a three-dimensional, biomechanical computer model of the 36 major pelvic
limb muscle groups in an ostrich (Struthio camelus) to investigate muscle function in this, the …

Archosaurs evolved a wide diversity of locomotor postures, body sizes, and hip joint
morphologies. The two extant archosaurs clades (birds and crocodylians) possess highly …

The link between claw morphology and function has been historically difficult to quantify,
analyze, and interpret. In this study, the functional morphology of vertebrate claws is …

We present the pelvic and hindlimb musculature of the abelisaurid Skorpiovenator
bustingorryi, constituting the most comprehensive muscle reconstruction to date in …

Piatnitzkysauridae were Jurassic theropods that represented the earliest diverging branch of
Megalosauroidea, being one of the earliest lineages to have evolved moderate body size …

There has been little agreement on the phylogeny of palaeognathous birds, with major
differences amongst and between results from morphological and molecular data. Two …

Tetrapod limbs morphology is a reliable proxy of locomotor capacities. Beyond this, other
aspects of life habits, such as predation abilities, can also be relevant to determine main …

Abstract The Greater Rhea (Rhea americana, Rheidae) is a flightless paleognath with a
wide geographical distribution in South America. The morphology of its shoulder girdle and …

Caenagnathids were oviraptorosaur theropods characterized by elongate hind limbs that
are proposed as adaptations for either wading or enhanced cursoriality. A lack of well …

The hind limbs of birds have long been considered a key feature in the conquest of different
environments. However, the high level of morphological diversity encountered complicates …