The only species of the genus is called brancai Giraffatitan measured 25 meters long and 13 tall. That means you could poke your head perfectly by a fourth floor window. And its weight is estimated at 37 tonnes maximum
Unlike other sauropods, had a constitution similar to that of current giraffes with long forelimbs and a long neck, which probably used to feed in the tops of the trees had spatulate teeth very suitable for diet . His skull has many holes, probably to reduce their weight to be a neck support 10 meters long.
The similarities with other sauropods ranging from a small brain compared to his body and he was a vegetarian who ate hundreds of pounds of conifers, ferns, horsetails and ginkgo or bennetites.
He lived in the Upper Jurassic in what is now Africa.