Eutyrannosauria

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Eutyrannosaurians
Temporal range:
Late Cretaceous, 80.6–66 Ma
Leaping Dryptosaurus.jpg
Dryptosaurus aquilunguis
T-Rex.jpg
Tyrannosaurus rex
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Superfamily: Tyrannosauroidea
Clade: Pantyrannosauria
Clade: Eutyrannosauria
Delcourt & Grillo, 2018
Subgroups

Eutyrannosauria is a clade of tyrannosauroid theropods whose distribution has been found in what is now Asia and North America.[1] The clade consists of an evolutionary grade of tyrannosaurs such as Appalachiosaurus, Dryptosaurus, and Bistahieversor which led up to the family Tyrannosauridae.[2][3][1] The group was named in 2018 by Delcourt and Grillo in their paper about possible southern hemisphere tyrannosauroids and the phylogeography of tyrannosaurs.[1]

Below is a phylogeography of eutyrannosaurs after Delcourt & Grillo (2018) and Voris et al. (2020):[1][4]

Eutyrannosauria

Dryptosaurus aquilunguis Cartography of North America.svg

Appalachiosaurus montgomeriensis Cartography of North America.svg

Bistahieversor sealeyi Cartography of North America.svg

Tyrannosauridae
Albertosaurinae

Gorgosaurus libratus Cartography of North America.svg

Albertosaurus sarcophagus Cartography of North America.svg

Tyrannosaurinae
Alioramini

Qianzhousaurus sinensis Cartography of Asia.svg

Alioramus remotus Cartography of Asia.svg

Alioramus altai Cartography of Asia.svg

Teratophoneus curriei Cartography of North America.svg

Dynamoterror dynastes Cartography of North America.svg

Lythronax argestes Cartography of North America.svg

Nanuqsaurus hoglundi Cartography of North America.svg

Daspletosaurini

Thanatotheristes degrootorum Cartography of North America.svg

Daspletosaurus torosus Cartography of North America.svg

Daspletosaurus horneri Cartography of North America.svg

Tyrannosaurini

Zhuchengtyrannus magnus Cartography of Asia.svg

Tarbosaurus bataar Cartography of Asia.svg

Tyrannosaurus rex Cartography of North America.svg


References

  1. ^ a b c d Delcourt, R.; Grillo, O. N. (2018). "Tyrannosauroids from the Southern Hemisphere: Implications for biogeography, evolution, and taxonomy". Palaeogeography, Palaeoclimatology, Palaeoecology. 511: 379–387. Bibcode:2018PPP...511..379D. doi:10.1016/j.palaeo.2018.09.003.
  2. ^ Loewen, M.A.; Irmis, R.B.; Sertich, J.J.W.; Currie, P. J.; Sampson, S. D. (2013). Evans, David C (ed.). "Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans". PLoS ONE. 8 (11): e79420. Bibcode:2013PLoSO...879420L. doi:10.1371/journal.pone.0079420. PMC 3819173. PMID 24223179.
  3. ^ Stephen L. Brusatte, Alexander Averianov, Hans-Dieter Sues, Amy Muir and Ian B. Butler (2016). "New tyrannosaur from the mid-Cretaceous of Uzbekistan clarifies evolution of giant body sizes and advanced senses in tyrant dinosaurs". Proceedings of the National Academy of Sciences of the United States of America. 113 (13): 3447–3452. doi:10.1073/pnas.1600140113. PMC 4822578. PMID 26976562.CS1 maint: multiple names: authors list (link)
  4. ^ Jared T. Voris; François Therrien; Darla K. Zelenitsky; Caleb M. Brown (2020). "A new tyrannosaurine (Theropoda:Tyrannosauridae) from the Campanian Foremost Formation of Alberta, Canada, provides insight into the evolution and biogeography of tyrannosaurids". Cretaceous Research. in press: Article 104388. doi:10.1016/j.cretres.2020.104388.
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