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Euoplocephalus

Reptilia - Ankylosauridae

Taxonomy
Euoplocephalus was named by Lambe (1910). It is not extant. Its type is Stereocephalus tutus. It is the type genus of Euoplocephalini. It was considered monophyletic by Vickaryous et al. (2004).

It was synonymized subjectively with Ankylosaurus by Tatarinov (1964) and Kuhn (1964); it was misspelled as Europlocephalus by Simmons (1965), Romer (1966), Coombs (1978), Coombs (1978), Coombs (1979), Wolberg (1980), Molnar (1980), Galton (1983), Dodson (1983), Russell (1984), Sereno (1986), Sereno (1986), Clemens (1986), Coombs (1986), Tumanova (1987), Carroll (1988), Molnar (1996), Vickaryous and Ryan (1997), Ryan (1997), Eberth (1997), Kirkland (1998), Ford (2000), Eberth et al. (2001), Vickaryous et al. (2001), Carpenter (2001), Pereda Suberbiola and Galton (2001), Garcia and Pereda-Suberbiola (2003), Vickaryous et al. (2004), Ryan and Evans (2005), Sullivan and Fowler (2006), Vickaryous (2006), Lü et al. (2007), Burns (2007), Arbour (2007), Longrich (2008), Carpenter et al. (2008), Burns (2008), Osi and Makádi (2009), Parsons and Parsons (2009), Arbour and Currie (2013), Arbour et al. (2014), Han et al. (2014) and Penkalski (2018).

It was assigned to Stegosauria by Lull (1911); to Stegosauridae by Lambe (1911) and Lambe (1914); to Acanthopholidae by Huene (1927); to Nodosauridae by Nopcsa (1928), Russell (1930), Romer (1956), Parsch (1963), Simmons (1965), Romer (1966), Wolberg (1980) and Ryan (1997); to Ankylosauridae by Gilmore (1917), Lambe (1918), Maleev (1956), Coombs (1978), Coombs (1978), Coombs (1979), Molnar (1980), Galton (1983), Dodson (1983), Russell (1984), Sereno (1986), Sereno (1986), Clemens (1986), Coombs (1986), Carroll (1988), Molnar (1996), Eberth (1997), Kirkland (1998), Eberth et al. (2001), Carpenter (2001), Pereda Suberbiola and Galton (2001), Garcia and Pereda-Suberbiola (2003), Ryan and Evans (2005), Sullivan and Fowler (2006), Vickaryous (2006), Lü et al. (2007), Burns (2007), Arbour (2007), Longrich (2008), Carpenter et al. (2008), Burns (2008), Osi and Makádi (2009), Parsons and Parsons (2009) and Arbour et al. (2014); to Ankylosaurinae by Nopcsa (1929), Tumanova (1987), Vickaryous and Ryan (1997), Ford (2000), Vickaryous et al. (2001), Vickaryous et al. (2004), Arbour and Currie (2013) and Han et al. (2014); and to Euoplocephalini by Penkalski (2018).

Synonyms
Synonymy list
YearName and author
1902Stereocephalus Lambe p. 55
1903Stereocephalus Lambe p. 60
1905Stereocephalus Lambe p. 48
1908Stereocephalus Brown
1909Stereocephalus Huene p. 17
1910Euoplocephalus Lambe p. 151
1911Euoplocephalus Lambe p. 9
1911Euoplocephalus Lull p. 339
1911Stereocephalus Wieland p. 117
1911Stereocephalus von Zittel p. 294
1914Euoplocephalus Lambe p. 132
1917Euoplocephalus Gilmore p. 43
1918Euoplocephalus Lambe p. 32
1927Euoplocephalus Huene p. 261
1928Erroplocephalus Nopcsa p. 185
1929Euoplocephalus Nopcsa p. 70
1930Euoplocephalus Russell p. 146
1956Euoplocephalus Maleev
1956Euoplocephalus Romer p. 635
1963Euoplocephalus Parsch p. 8
1965Europlocephalus Simmons p. 70
1966Euoplocephalus Romer p. 370
1978Euoplocephalus Coombs p. 143
1979Euoplocephalus Coombs, Jr. p. 666
1980Euoplocephalus Molnar p. 138
1980Euoplocephalus Wolberg p. 46
1983Euoplocephalus Dodson p. 94
1983Euoplocephalus Galton p. 6
1984Euoplocephalus Russell p. 25
1986Euoplocephalus Clemens p. 80
1986Euoplocephalus Coombs, Jr. p. 162
1986Euoplocephalus Sereno
1987Euoplocephalus Tumanova
1988Euoplocephalus Carroll
1996Euoplocephalus Molnar p. 660
1997Euoplocephalus Eberth p. 201
1997Euoplocephalus Ryan p. 391
1997Euoplocephalus Vickaryous and Ryan p. 491
1998Euoplocephalus Kirkland p. 273 fig. 3
2000Euoplocephalus Ford p. 175
2001Euoplocephalus Carpenter p. 457
2001Euoplocephalus Eberth et al. p. 57
2001Euoplocephalus Pereda Suberbiola and Galton p. 199
2001Euoplocephalus Vickaryous et al. p. 1774
2003Euoplocephalus Garcia and Pereda-Suberbiola p. 161
2004Euoplocephalus Vickaryous et al. p. 365
2005Euoplocephalus Ryan and Evans p. 315
2006Euoplocephalus Sullivan and Fowler p. 259
2006Euoplocephalus Vickaryous p. 1011
2007Euoplocephalus Arbour p. 41A
2007Euoplocephalus Burns p. 54A
2007Euoplocephalus Lü et al. p. 889 fig. 1
2008Euoplocephalus Burns p. 1108
2008Euoplocephalus Carpenter et al. p. 1098
2008Euoplocephalus Longrich p. 994
2009Euoplocephalus Osi and Makádi p. 239 fig. 10
2009Euoplocephalus Parsons and Parsons p. 736 fig. 18
2013Euoplocephalus Arbour and Currie p. 31
2014Euoplocephalus Arbour et al. p. 11 fig. 6
2014Euoplocephalus Han et al. p. 14 fig. 11
2018Euoplocephalus Penkalski p. 264

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
RankNameAuthor
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Genasauria
Thyreophora()
Ankylosauria()
familyAnkylosauridae
subfamilyAnkylosaurinaeNopcsa 1918
tribeEuoplocephalini
genusEuoplocephalus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
P. G. Penkalski 2018Genus monotypic, as for the type species.