 B-R-A-C-H-I-O-S-A-U-R-I-D-A, the brachiosaurity are a family or clave of herbivorous, quadrupedals or pod dinosaurs. Brachiosaur heads had long necks that enabled them to access the leaves of tall trees that other sauropods would have been unable to reach. In addition, they possessed thick spoon-shaped teeth which helped them to consume tough plants more efficiently than other sauropods. They have also been characterized by a few unique traits. Horse-in-apthamothes, dorsal vertebrate with rod-like transverse processes and aniskeum with an abbreviated pubic pit-dunkle. Brachiosaurus is one of the best known members of the brachiosaurity, and was once thought to be the largest land animal to ever live. Brachiosaurids thrived in the regions which are now North and South America, Africa, Europe, and Asia. They first appear in the fossil record in the late Jurassic period and disappear in the late Early Cretaceous period. The broad distribution of brachiosaurity in both northern and southern continents suggests that the group originated prior to the breakup of Paea. In the Early Cretaceous the distribution of the group is dramatically reduced. It is still unclear whether this reduction is due to local extinctions or to the limited nature of the Early Cretaceous fossil record. Brachiosaurity has been defined as all-type tannosauriforms that are more closely related to brachiosaurus than to sultasaurs. It is one of the three main groups of the clay titanosauriforms, which also includes the euthelopodidae and the titanosauria.