Although the basic morphology of the Ediacaran metazoan Corumbella werneri (the type species of the genus) is well established, little is known about its skeletal tissue. Carbonaceous fragments of this fossil from the ...

Although the basic morphology of the Ediacaran metazoan Corumbella werneri (the type species of the genus) is well established, little is known about its skeletal tissue. Carbonaceous fragments of this fossil from the ...

Postembryonic skeletogenesis in anuran amphibians has been widely studied, yet less than one percent of the extant diversity has been covered and relatively few comparative studies exist. Here we document the sequence and ...

Osteological studies of anurans generally have focused on the descriptions of adults and larval chondrocrania, including developmental series of chondrocrania. Thus, the changes occurring during postmetamorphic stages ...

We present the ontogeny of the integrated musculoskeletal complex that comprises the pelvic girdle and hind limbs of anurans. Our histological data show that the pelvic girdle originates from a single mesenchymatic ...

The tarsometatarsus conformation and foot types in birds are unique traits within vertebrates. We investigate how the tarsometatarsus and the zygodactyl foot are formed during development in the monk parakeet (Myiopsitta ...