Albertosaurus older "Gorgosaurus libratus" (sometimes called "Albertosaurus libratus"; see below). These two species are the only described albertosaurines; other undescribed species may exist. Thomas Holtz found "Appalachiosaurus" to be an albertosaurine in 2004, but his more recent unpublished work locates it just outside Tyrannosauridae, in agreement with other authors. The other major subfamily of tyrannosaurids is the Tyrannosaurinae, which includes "Daspletosaurus", "Tarbosaurus" and "Tyrannosaurus". Compared with these robust tyrannosaurines, albertosaurines had slender builds, with proportionately smaller skulls and longer bones of the lower leg (tibia) and feet (metatarsals and phalanges). Below is the cladogram of the Tyrannosauridae based on the phylogenetic
Bones of the Hills built. Bones of the Hills Bones of the Hills (known as Genghis: Bones of the Hills in America) is the third book of the "Conqueror" series, based on the life of Mongol gurkhan Genghis by Conn Iggulden. It focuses mainly on the Mongol invasion of Islamic Central Asia, the war against Shah Muhammad II of Khwarezm and his son Jalal ad-Din Mingburnu and the brutal massacres at Urgench and Merv. Genghis Khan, powerful leader of a nation united from the tribes, is victorious in the long war against the Chin, the Mongolians' ancient foe. Now trouble arises from another direction: