Eutyrannosauria

Eutyrannosaurians; Temporal range: ; Late Cretaceous, 81.9–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Dryptosaurus aquilunguis
	Tyrannosaurus rex
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Superfamily:	†Tyrannosauroidea
Clade:	†Pantyrannosauria
Clade:	†Eutyrannosauria; Delcourt & Grillo, 2018
Subgroups
	†Appalachiosaurus; †Bistahieversor; †Dryptosaurus; †Tyrannosauridae;

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

Dryptosaurus aquilunguis

References

^ ^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.
^ 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.
^ 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.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ 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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[SouthernTyrannosaur-1] 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.

[Loewen13-2] 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.

[Brusatte2016-3] 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.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[Vorisetal2020-4] 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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