Pedigree of Tyrannosaurus Rex

Horse	Parents	Grand-Parents	Great Grand-Parents	Great-Great Grand-Parents
Tyrannosaurus Rex Andalusian	Rugops Andalusian	Bactrosaurus Andalusian	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Nigersaurus Andalusian	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
	Einiosaurus Andalusian	Pachycephalosaurus Andalusian	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Dreadnoughtus Andalusian	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation

Currently...