Tyrannosauridae
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Tyrannosaurs, 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 with most of the rest of the large theropods. Recent phylogenetic studies, however, 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 such as the allosaurids. Discoveries of basal, 'coelurid'-like tyrannosauroids have helped solidify this link.
Tyrannosaurs are characterized by broad, massive skulls, short, powerful necks, and reduced 'arms' with only two digits. Notable specimens include "Jane", the world's most complete juvenile T. rex.
- Weight: up to 6.4 tonnes (up to 7 US tons)
- Length: up to 14 metres (up to 46 ft)
- Location: Western Europe, North America, Central and East Asia (area dependent on species)
- Period: Late Cretaceous
[edit] 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 tyrannosaurid genera:
- Superfamily Tyrannosauroidea (primitive tyrannosaurs)
- Family Tyrannosauridae
- Aublysodon
- Deinodon
- Subfamily Albertosaurinae
- Subfamily Tyrannosaurinae
- Alioramus
- Tribe Tyrannosaurini
- Family Tyrannosauridae
es:Tyrannosauridae fr:Tyrannosauridae it:Tyrannosauridae he:טירנוזאורידים nl:Tyrannosauridae ja:ティラノサウルス科 pt:Tyrannosauridae sk:Tyrannosauridae
