A group of english researchers posted online data and obj files for dinossaur shapes used in the study Linking the evolution of body shape and locomotor biomechanics in bird-line archosaur. Looks like a cool library for dinossaur bones, elements and scripts! Check it here: http://datadryad.org/handle/10255/dryad.47161
It is an impressive repository and Vivaty Studio imports very well these .obj body parts.