Tyrannosauridae

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Osborn, 1906 Template:Taxobox end placement Template:Taxobox section subdivision See text Template:Taxobox end

Tyrannosaurids, tyrant lizards or members of the Tyrannosauridae are a carnivorous dinosaur family whose name is derived from the Greek words tyrannos, meaning tyrant; and sauros, meaning lizard.

Tyrannosaurids were originally classified as "carnosaurs," along most of the rest of the large theropods. Recent phylogenetic studies, though, have determined that tyrannosaurids are coelurosaurs, a group which also includes the ornithomimids and the maniraptorans. Thus, they are more closely related to dromaeosaurids than to other large predatory dinosaur groups like the allosaurs.

Tyrannosaurs are characterized by broad, massive skulls, short, powerful necks, and reduced arms with only two digits.

Weight: 1.8 to 6.4 tonnes (2 to 7 US tons)
Length: 8 to 14 metres (26 to 46 ft)
Location: Alberta in Canada, Mongolia, and Montana in the United States (area dependent on species)
Period: Late Cretaceous

List of Species

The Tyrannosaurids contain several genera and species, of which Tyrannosaurus rex is undoubtedly the most well-known. The following is a list of all known tyrannosaur genera:

Subfamily Albertosaurinae

Gorgosaurus
Albertosaurus

Subfamily Tryannosaurinae