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Eutyrannosauria

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Eutyrannosaurians
Temporal range:
Late Cretaceous, 82–66 Ma
Dryptosaurus aquilunguis
Tyrannosaurus rex
Scientific classification Edit this classification
Domain: Eukaryota
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]

Classification

Below is a phylogeographic cladogram of Eutyrannosauria after Voris et al. (2020):[4]

Eutyrannosauria

References

  1. ^ a b c 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. S2CID 133830150.
  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. Bibcode:2016PNAS..113.3447B. doi:10.1073/pnas.1600140113. PMC 4822578. PMID 26976562.{{cite journal}}: 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. 110: Article 104388. doi:10.1016/j.cretres.2020.104388. S2CID 213838772.


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