Las extremidades del Quetzalcoatlus son una de sus características más distintivas

Its skeleton

One of the most striking features of the Inostrancevia alexandri is its robust and long skull

Ancho 80 mm

not only on its arms and tail

Tiktaalik roseae Variant:Hand painted Las extremidades del Quetzalcoatlus sonTiktaalik 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