Cro-Magnon were anatomically modern, straight limbed and tall compared to the contemporary Neanderthals. Physically they only differ from their modern day descendants in Europe by being on average taller, having a more robust physique and a slightly larger cranial capacity. The Cro-Magnons had long, fairly low skulls, with a wide face, a prominent nose and moderate to no prognathism, similar to features seen in modern Europeans. A very distinct trait is the rectangular orbits. Several works on genetics, blood types and cranial morphology indicate that the Basque people may be the descendents of the original Cro-Magnon population.