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 Thomas Holtz found "Appalachiosaurus" to be an albertosaurine in 2004, but his more recent unpublished work locates it just outside Tyrannosauridae, in agreement with other authors.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
History of the horse in the Indian subcontinent "The occurrence of true horse ("Equus caballus" L.) was evidenced by the enamel pattern of the upper and lower cheek and teeth and by the size and form of incisors and phalanges (toe bones).". However, archaeologists like Meadow (1997) disagree, on the grounds that the remains of the "Equus ferus caballus" horse are difficult to distinguish from other equid species such as "Equus asinus" (donkeys) or "Equus hemionus" (onagers). An alleged clay model of a horse has been found in Mohenjo-Daro and an alleged horse figurine in Periano Ghundai in the Indus Valley. Trautmann (1982) thus remarked the supply and