with a relatively narrow torso

El hueso yugal

an adaptation that facilitated this range of motion

Nests: Protoceratops andrewsi nests with fossilized eggs and juvenile skeletons have been discovered near the adults

Approximate measurements of the Rapetosaurus: Scale 1:100 - Complete

Tiktaalik roseae Machaeroprosopus with a relatively narrow torsoTiktaalik roseae is a fossil vertebrate from the Late Devonian (approximately 375 million years ago) that represents a morphological and functional intermediate form between lobe finned fish and the first limbed vertebrates (tetrapods). The genus Tiktaalik was first described following discoveries in 2004 in rocks of the Canadian Arctic, on Ellesmere Island (Nunavut) , and constitutes one of the best examples of transition in the fossil record between