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Ankylosauria (ankylosaur)

Reptilia

Taxonomy
Ankylosauria was named by Osborn (1923) [Named in text without description.]. It was considered monophyletic by Vickaryous et al. (2004).

It was reranked as the order Ankylosauria by Bakker and Galton (1974); it was reranked as the unranked clade Ankylosauria by Buchholz (2002), Sánchez-Hernández et al. (2007), Butler et al. (2008), Han et al. (2012), Yang et al. (2013), Arbour et al. (2014), Gasparini et al. (2015), Leahey et al. (2015), Penkalski and Tumanova (2017), Brown et al. (2017), Arbour and Evans (2017), Zheng et al. (2018), Murray et al. (2019), Dieudonné et al. (2020), Paulina-Carabajal et al. (2021), Zhu et al. (2024), Álvarez Nogueira et al. (2025).

It was assigned to Enoplosauria by Swinton (1970); to Ornithischia by Bakker and Galton (1974); to Orbitoscuta by Bakker (1986); to Ankylosauromorpha by Carpenter (2001); to Ornithischia by Romer (1956), Parsch (1963), Tatarinov (1964), Kuhn (1964), Ostrom (1965), Kuhn (1966), Romer (1966), Charig (1967), Thulborn (1971), Krebs (1974), Bonaparte (1978), Benton (1979), Ostrom (1980), McIntosh (1981), Thurmond and Jones (1981), McGinnis (1982), Russell (1984), Maryanska and Osmólska (1985), Carroll (1988), Dong (1993), Buffetaut (1995), Peng et al. (2001), Chure et al. (2006); to Thyreophora by de Valais et al. (2003), Weishampel (2004), Parish and Barrett (2004), Butler et al. (2008); to Ornithischia by Gasparini et al. (2015), Penkalski and Tumanova (2017), Brown et al. (2017); to Eurypoda by Sereno (1986), Benton (1990), Sereno (1998), Sereno (1999), Vickaryous et al. (2004), Norman et al. (2004), Maidment et al. (2006), Maidment et al. (2008), Leahey et al. (2015), Zheng et al. (2018); and to Thyreophora by Buchholz (2002), Sánchez-Hernández et al. (2007), Han et al. (2012), Yang et al. (2013), Arbour et al. (2014), Arbour and Evans (2017), Murray et al. (2019), Dieudonné et al. (2020), Paulina-Carabajal et al. (2021), Rozadilla et al. (2021), Zhu et al. (2024), Álvarez Nogueira et al. (2025).