Its very strange name honors Georges Zbyszewski. It was around 62 feet long. It was a very close relative of Turiasaurus, and it lived in Portugal with creatures like Allosaurus, Torvosaurus, Mirigaia, Lusotitan, and Dinheirosaurus.
It was actually first discoverd in 1996, but only recently described. Heres a picture of it. And another article: