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Description
A phylogeny of dinosaurs. Based upon the phylogenies here.
2011 update: Added Caenagnathoidea, Archaeopterygidae (provisionally as basal paravians), and "Changchunsauria", renamed "Sapeornithidae" to Omnivoropterygidae, and removed the possibly non-monophyletic "Dilophosauridae", "Polacanthidae", and "Camptosauridae".
2012 update: Added Orionides, Piatnitzkysauridae, Euhelopodidae, and "Stokesosauria", renamed Alvarezsauroidea to Alvarezsauria and "Sinraptoridae" to Metriacanthosauridae, and removed the possibly non-monophyletic "Saurornitholestinae". Tweaked the phylogeny of ornithopods and euornithines somewhat. Also, new formatting! (Courtesy of KilldeerCheer, who introduced me to the program FreeMind.)
2013 update: Added Saturnaliidae, replaced "Zephyrosauria" with its now-published name Orodrominae, and removed the possibly non-monophyletic "Guaibasauridae" and "'Changchunsauria'" (which would be Jeholosauridae now). Minor tweaks with the phylogeny of ornithopods, neosauropods, and neotheropods. Put clades with ambiguous relationships in polytomies. (No clue why I hadn't thought of that before.)
2014 update: Added Pennaraptora and Camarasauridae, re-added Saurornitholestinae and Jeholosauridae, renamed "Saurolophinae" to Hadrosaurinae, and removed the possibly non-monophyletic "Coronaves", "Metaves", and "Thescelosauridae".
2014 secondary update: I may have been too hasty in making the update this year, because Holtz made some significant changes to his lecture notes mid-way through the semester. Added Deinocheiridae, Caudipterygidae, and Jinfengopteryginae and tweaked the phylogeny of coelurosaurs.
2015 update: Added Hongshanornithidae, Thyreophoroidea, and Hadrosauromorpha, re-added Dilophosauridae, and renamed "Caudipterygidae" to Caudipteridae. Tweaked the phylogeny of avetheropods. The biggest change is the addition of monogeneric lineages, because I started to feel that excluding them was arbitrary.
Early 2017 update (which was meant to be in 2016): Added Bahariasauridae, Noasaurinae, Elaphrosaurinae, Ornithomimoidea, Troodontinae, Somphospondyli, Andesauroidea, Rhabdodontomorpha, and Iguanodontidae, removed "Yunnanosauridae" and "Bagaceratopsidae", lumped Stormbergia into Lesothosaurus, expanded Nodosauridae and Ankylosauridae, and tweaked the phylogeny of ceratosaurs, tyrannosauroids, avialans, sauropodomorphs, and ornithischians. (I have decided that I won't be tracking minor shifts and additions of monogeneric taxa.)
2011 update: Added Caenagnathoidea, Archaeopterygidae (provisionally as basal paravians), and "Changchunsauria", renamed "Sapeornithidae" to Omnivoropterygidae, and removed the possibly non-monophyletic "Dilophosauridae", "Polacanthidae", and "Camptosauridae".
2012 update: Added Orionides, Piatnitzkysauridae, Euhelopodidae, and "Stokesosauria", renamed Alvarezsauroidea to Alvarezsauria and "Sinraptoridae" to Metriacanthosauridae, and removed the possibly non-monophyletic "Saurornitholestinae". Tweaked the phylogeny of ornithopods and euornithines somewhat. Also, new formatting! (Courtesy of KilldeerCheer, who introduced me to the program FreeMind.)
2013 update: Added Saturnaliidae, replaced "Zephyrosauria" with its now-published name Orodrominae, and removed the possibly non-monophyletic "Guaibasauridae" and "'Changchunsauria'" (which would be Jeholosauridae now). Minor tweaks with the phylogeny of ornithopods, neosauropods, and neotheropods. Put clades with ambiguous relationships in polytomies. (No clue why I hadn't thought of that before.)
2014 update: Added Pennaraptora and Camarasauridae, re-added Saurornitholestinae and Jeholosauridae, renamed "Saurolophinae" to Hadrosaurinae, and removed the possibly non-monophyletic "Coronaves", "Metaves", and "Thescelosauridae".
2014 secondary update: I may have been too hasty in making the update this year, because Holtz made some significant changes to his lecture notes mid-way through the semester. Added Deinocheiridae, Caudipterygidae, and Jinfengopteryginae and tweaked the phylogeny of coelurosaurs.
2015 update: Added Hongshanornithidae, Thyreophoroidea, and Hadrosauromorpha, re-added Dilophosauridae, and renamed "Caudipterygidae" to Caudipteridae. Tweaked the phylogeny of avetheropods. The biggest change is the addition of monogeneric lineages, because I started to feel that excluding them was arbitrary.
Early 2017 update (which was meant to be in 2016): Added Bahariasauridae, Noasaurinae, Elaphrosaurinae, Ornithomimoidea, Troodontinae, Somphospondyli, Andesauroidea, Rhabdodontomorpha, and Iguanodontidae, removed "Yunnanosauridae" and "Bagaceratopsidae", lumped Stormbergia into Lesothosaurus, expanded Nodosauridae and Ankylosauridae, and tweaked the phylogeny of ceratosaurs, tyrannosauroids, avialans, sauropodomorphs, and ornithischians. (I have decided that I won't be tracking minor shifts and additions of monogeneric taxa.)
2017 update: New formatting using TreeGraph. Added Euavialae, renamed "Parksosauridae" to Thescelosauridae, and tweaked the phylogeny of ornithischians. The biggest change is the reshuffling of basal dinosaurs due to the uncertainty brought on by Baron et al. (2017). Holtz continues to use the traditional Saurischia-Ornithischia dichotomy as the "main" option for his course (while acknowledging alternatives), so I have followed suit here. However, I have decided to also provide an alternative tree representing the Ornithoscelida hypothesis. Note that the topology for this tree is based on Baron et al.'s latest version of their analysis, not their original paper.
2018 update: Added Lessemsauridae, Etrigansauria, Eutyrannosauria, Sinovenatorinae, Halszkaraptorinae, Anchiornithidae, and Jinguofortisidae, removed subclades within Eudromaeosauria, and tweaked the phylogeny of ceratosaurs and avialans.
Early 2020 update (which was meant to be in 2019): Added Stokesosauridae and Colossosauria and tweaked the phylogeny of ceratosaurs, stegosaurs, and neornithischians. The "expanded Carnosauria" of Rauhut and Pol (2019) has not been included for now, but I wouldn't be surprised to see it implemented in a future update.
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What taxa make up Andesauroidea?