After Arbour & Evans, 2017, and Brown, Henderson, Vinther, Fletcher, Sistiaga, Herrera & Summons, 2017

<==o †Ankylosauria (Brown, 1908) Osborn, 1923
   |--o †Nodosauridae Marsh, 1890a [incl. Polacanthidae Wieland, 1911 (in partim)] (nodosaurs; nodulipanssariselät)
   |  |--+-- †Sauroplites scutiger Bohlin, 1953
   |  |  |-- †Mymoorapelta maysi Kirkland & Carpenter, 1994
   |  |  `-- †Dongyangopelta yangyanensis Chen, Zheng, Azuma, Shibata, Lou, Q. Jin & X. Jin, 2013
   |  `--+-- †Gastonia burgei Kirkland, 1998
   |     `--+-- †Gargoyleosaurus parkpinorum Carpenter, Miles, & Cloward, 1998 [Gargoyleosaurus parkpini Carpenter, Miles, & Cloward, 1998]
   |        `--+--o †Polacanthus  Owen, 1865 non Huxley, 1867
   |           |  |-- †P. foxii Owen, 1865 non Hulke, 1881
   |           |  `?- †P. rudgwickensis Blows, 1996
   |           `--+-- †Peloroplites cedrimontanus Carpenter, Bartlett, Bird & Barrick, 2008
   |              `--+-- †Sauropelta edwardsorum Ostrom, 1970a [emend. ????] [Sauropelta edwardsi Ostrom, 1970a]
   |                 `--+-- †Nodosaurus textilis Marsh, 1889b [Stegopelta landerensis Williston, 1905]
   |                    `--+-- †Niobrarasaurus coleii (Mehl, 1936) Carpenter, Dilkes & Weishampel, 1995 [Hierosaurus coleii Mehl, 1936]
   |                       `--+-- †Tatankacephalus cooneyorum WL Parsons & KM Parsons, 2009; E.Cret. WNAm.
   |                          `--+-- †Silvisaurus condrayi Eaton, 1960
   |                             `--+-- †Amanantarx ramaljonesi Carpenter et al., 1999
   |                                |--+-- †Hungarosaurus tormai Ősi, 2005
   |                                |  `--+-- †Europelta carbonensis Kirkland, Alcalá, Loewen, Espílez, Mampel & Wiersma, 2013
   |                                |     `--+-- †Borealopelta markmitchelli Brown, Henderson, Vinther, Fletcher, Sistiaga, Herrera & Summons, 2017
   |                                |        `-- †Pawpawsaurus campbelli Lee, 1996
   |                                `--+--o †Struthiosaurinae Nopcsa, 1923
   |                                   |  |-- †Stegopelta landerensis Williston, 1905
   |                                   |  `--o †Struthiosaurus Bunzel, 1871 [taxonomic history]
   |                                   |     |-- †S. austriacus Bunzel, 1871 [taxonomic history]
   |                                   |     |-- †S. transylvanicus Nopcsa, 1915 [taxonomic history]
   |                                   |     `-- †S. languedocensis Carcia & Pereda Suberbiola, 2003 [taxonomic history]
   |                                   `--+-- †Panoplosaurus mirus Lambe, 1919
   |                                      `==o †Edmontonia Sternberg, 1928 [ Chassternbergia Bakker, 1988; Denversaurus Bakker, 1988]
   |                                         |-- †E. longiceps Sternberg, 1928
   |                                         |-- †E. rugosidens (Gilmore, 1930) [Paleoscincus rugosidens Gilmore, 1930; Chassternbergia rugosidens (Gilmore, 1930) Bakker, 1988]
   |                                         `-- †Denversaurus schlessmani Bakker, 1988 [Edmontonia schlessmani (Bakker, 1988)]
   `--o †Ankylosauridae Brown, 1908 sensu Carpenter, 2001 [Syrmosauridae Maleev, 1952; incl. Polacanthidae Wieland, 1911 (in partim)] (nuijahäntäpanssariselät)
      |-- †Kunbarrasaurus ieversi Leahey, Molnar, Carpenter, Witmer & Salisbury, 2015 [Minmi sp. Molnar, 1996a]
      `--+-- †Hylaeosaurus armatus Mantell, 1833 [Synonyms]
         `--+-- †Liaoningosaurus paradoxus Xu, Wang & You, 2001
            |-- †Crichtonpelta benxiensis (Lü, Ji, Gao & Li, 2007) Arbour &am; Currie, 2015 [Crichtonsaurus benxiensis Lü, Ji, Gao & Li, 2007]
            |-- †Chuanqilong chaoyangensis Han, Zheng, Hu, Xu & Barrett, 2014
            |-- †Cederpelta bilbayhallorum Carpenter, Kirkland, Burge & Bird, in Carpenter, 2001
            |-- †Aletopelta coombsi Ford & Kirkland, in Carpenter, 2001
            `--+--o Shamosaurinae Tumanova, 1983
               |  |-- †Gobisaurus domoculus Vickaryous, Russell, Currie & Zhao, 2001 [incl. Zhongyuansaurus luoyangensis Xu, Lu, Zhang, Jia, Hu, Zhang, Wu & Ji, 2007; Arbour & Currie, 2015]
               |  `-- †Shamosaurus scutatus Tumanova, 1983
               `--o †Ankylosaurinae Brown, 1908
                  |-- †Zhongyuansaurus luoyangensis Xu, Lu, Zhang, Jia, Hu, Zhang, Wu & Ji, 2007
                  `--+--o †Pinacosaurus Gilmore, 1930 [Syrmosaurus Maleev, 1952a]
                     |  |-- †P. grangeri Gilmore, 1933b [Pinacosaurus ninghsiensis Young, 1935b; Syrmosaurus viminocaudus Maleev, 1952a; Syrmosaurus viminicaudus Maleev, 1954]
                     |  `-- †P. mephistocephalus Godefroit, Pereda Suberbiola & Dong, 1999
                     `--+--+-- †Tsagantegia longicranialis Tumanova, 1993
                        |  `--+-- †Talarurus plicatospineus Maleev, 1952b
                        |     `-- †Nodocephalosaurus kirtlandensis Sullivan, 1999
                        `--+--+-- †Saichania chulsanensis Marya´nska, 1977 [Tianzhenosaurus youngi Pang & Cheng, 1998; Shanxia tienzhenensis Barrett, You, Upchurch & Burton, 1998 (Arbour &am; Currie, 2015)]
                           |  `--+-- †Zaraapelta nomadis Arbour, Currie & Badamgarav, 2014
                           |     `-- †Tarchia kielanae Marya´nska, 1977 [Minotaurasaurus ramachandrani CA Miles & CJ Miles, 2009 (Arbour &am; Currie, 2015)] L.Cret. CAs.
                           `--o †Ankylosaurini Brown, 1908 sensu Arbour & Currie, 2015
                              |-- †Ziapelta sanjuanensis Arbour, Burns, Sullivan, Lucas, & Cantrell, 2014
                              |-- †Euoplocephalus tutus (Lambe, 1902) Lambe, 1910 [Synonyms]
                              `--+-- †Zuul crurivastator Arbour & Evans, 2017
                                 |--o †Scolosaurus Nopcsa, 1928 [Oohkotokia Penkalski, 2014]
                                 |  |-- †S. cutleri Nopcsa, 1928 [Oohkotokia horneri Penkalski, 2014]
                                 |  `-- †S. thronus Penkalski, 2018
                                 |-- †Dyoplosaurus acutosquameus Parks, 1924
                                 |--o †Anodontosaurus lambei Sternberg, 1929
                                 |  |-- †A. inceptus Penkalski, 2018
                                 |  `-- †A. lambei Sternberg, 1929
                                 `-- †Ankylosaurus magniventris Brown, 1908

Ankylosauria incertae sedis & nomina dubia:

Crichtonsaurus bohlini Dong, 2002; nomen dudium (Arbour &am; Currie, 2015)
    †Loricosaurus sculatus von Huene, 1929 [Titanosaurid scutes]
    †Paleoscincus africanus Broom, 1910
    †Paleoscincus asper Lambe, 1902
    †Paleoscincus costatus Leidy, 1856
    †Paleoscincus latus Marsh, 1892 [Pachycephalosaurid tooth]
    †Stegosaurides excavatus Bohlin, 1953
    †Stegosaurus madagascariensis Piveteau, 1926 [Ankylosauria indet.] (Maidment et al., 2008)

“Polacanthidae”

Hoplitosaurus marshi (Lucas, 1901) Lucas, 1902a [Stegosaurus marshi Lucas, 1901; Polacanthus marshi (Lucas, 1901)]

†Nodosauridae

Anoplosaurus curtonotus Seeley, 1879
    †Antarctopelta oliveroi Salgado & Gasparini, 2006
    †Propanoplosaurus marylandicus Stanford, Weishampel & Deleon, 2011
    †Texasetes pleurohalio Coombs, 1995
    †Taohelong jinchengensis Yang, You, Li & Hong, 2013
    †Priconodon crassus Marsh, 1888
    †Liaoningosaurus paradoxus Xu, Wang & You, 2001
    †Dracopelta zbyszewskii Galton, 1980a
    †Hierosaurus sternbergii Wieland, 1909
    †Sarcolestes leedsi Lydekker, 1893c
    †Glyptodontopelta mimus Ford, 2000 [Edmontonia australis Ford, 2000]
    †Nodosaurus ischyrus (Seeley, 1881)

Ankylosauridae

Acanthopholis eucercus Seeley, 1869
    †Acanthopholis horrida Huxley, 1867 [Syngonosaurus Seeley, 1879; Eucercosaurus Seeley, 1879]
    †Acanthopholis macrocercus Seeley, 1869; in partim [=? Acanthopholis horrida Huxley, 1867]
    †Acanthopholis platypus Seeley, 1869; in partim [=? Acanthopholis horrida Huxley, 1867]
    †Acanthopholis stereocercus Seeley, 1869; in partimAhshislepelta minor Burns & Sullivan, 2011
    †Amtosaurus magnus Kurzanov (Kuzanov) & Tumanova, 1978
    †Anoplosaurus major Seeley, 1879; in partimBissektipelta archibaldi (Averianov, 2002) [Amtosaurus archibaldi Averianov, 2002]
    †Brachypodosaurus gravis Chakravarti, 1934
    †Chassternbergia rugosidens Bakker, 1988
    †Cryptodraco eumerus (Seeley, 1869)
    †Dyoplosaurus giganteus Maleev, 1956 [Tarchia gigantea (Maleev, 1956) Marya´nska, 1977] nomen dubium (Arbour, Currie & Badamgarav, 2014)
    †Glyptodontopelta mimus Ford, 2000
    †“Hanwulosaurus» nomen nudumHieshansaurus pachycephalus Bohlin, 1953
    †Lametasaurus indicus Matleyi, 1923
    †Maleevus disparoserratus (Maleev, 1952a) Tumanova, 1987 [Syrmosaurus disparoserratus Maleev, 1952a]
    †Minmi paravertebra Molnar, 1980 (nomen dubium)
    †Onychosaurus hungaricus Nopcsa, 1902
    †Polacanthoides ponderosus Nopcsa, 1929
    †Peishansaurus philemys Bohlin, 1953 [Pachycephalosaurid jaw fragment]
    †Pinacosaurus ninghsiensis Young, 1935
    †Priodontognathus phillipsi (Seeley, 1869) [Carpenter states year as 1969, I think not...]
    †Regnosaurus northamptoni Mantell, 1848
    †Rhadinosaurus alcinus Seeley, 1881
    †Rhodanosaurus ludgunensis Nopcsa, 1929 [Struthiosaurus ludgunensis (Nopcsa, 1929)]
    †Sangonghesaurus Chao, 1983
    †Sarcolestes leedsi Lydekker, 1893
    †Syngonosaurus macrocercus Seeley, 1879
    †Telarurus disparoserratus Maleev, 1952
    †Tianchisaurus nedegoatpeferima Dong, 1993 [Jurassosaurus nedegoapeferkimoruma Dong, vide Holden, 1993; Tianchiasaurus nedegoapeferima Dong, 1993, emend. Dong, 1994] (Jurassic Park ankylosaur)
    †Tianzhenosaurus youngi Peng & Cheng, 1998 sensu Lü, Ji, Gao & Li, 2007

Alternative phylogenies of Ankylosauria:

After Arbour & Currie, 2016:

<==o †Ankylosauria
   |-- †Nodosauridae
   `--o †Ankylosauridae
      |-- †Minmi
      `--+-- †Liaoningosaurus
         `--+-- †Cederpelta
            `--+-- †Gobisaurus
               `--+-- †Shamosaurus
                  `--+-- †Zhongyuansaurus
                     |-- †Tsagantegia
                     |--+-- †Shanxia
                     |  `--+-- †“Crichtonsaurus” benxiensis [Crichtonpelta]
                     |     `--+-- †Dyoplosaurus
                     |        `-- †Pinacosaurus mephistocephalus
                     `--+--+-- †Ankylosaurus
                        |  `-- †Euoplocephalus
                        `--+--+-- †Minotaurasaurus
                           |  `-- †Pinacosaurus grangeri
                           `--+-- †Nodocephalosaurus
                              `--+--+-- †Talarurus
                                 |  `-- †Tianzhenosaurus
                                 `--+-- †Saichania
                                    `-- †Tarchia

After Thompson et al., 2012 (via Arbour & Currie, 2016):

<==o †Ankylosauria
   |-- †Nodosauridae
   `--o †Ankylosauridae
      |-- †Minmi
      `--+-- †Liaoningosaurus
         `--+-- †Cederpelta
            `--+-- †Gobisaurus
               `--+-- †Shamosaurus
                  `--+-- †Zhongyuansaurus
                     |-- †Tsagantegia
                     |--+-- †Shanxia
                     |  `--+-- †“Crichtonsaurus” benxiensis [Crichtonpelta]
                     |     `--+-- †Dyoplosaurus
                     |        `-- †Pinacosaurus mephistocephalus
                     `--+--+-- †Ankylosaurus
                        |  `-- †Euoplocephalus
                        `--+--+-- †Minotaurasaurus
                           |  `-- †Pinacosaurus grangeri
                           `--+-- †Nodocephalosaurus
                              `--+--+-- †Talarurus
                                 |  `-- †Tianzhenosaurus
                                 `--+-- †Saichania
                                    `-- †Tarchia

After W. L. Parsons & K. M. Parsons, 2009

<==o Ankylosauria
   |--o Nodosauridae
   |  |-- †Sauropelta
   |  |-- †Silvisaurus
   |  `--+-- †Pawpawsaurus
   |     `--+-- †Panoplosaurus
   |        `-- †Edmontonia
   `--o †Ankylosauridae
      |-- †Cederpelta
      `--+-- †Minmi
         `--+-- †Shamosaurus
            |-- †Gobisaurus
            `--+-- †Tsagantegia
               |--+-- †Gastonia
               |  `-- †Tatankacephalus
               `--+==Pinacosaurus
                  |-- †Tianzhenosaurus
                  |-- †Talarurus
                  |-- †Tarchia
                  |-- †Saichania
                  `--+-- †Ankylosaurus
                     `-- †Euoplocephalus

After Hill, Witmer & Norell, 2003

<==o Ankylosauria
   |-- Nodosauridae
   `--o †Ankylosauridae
      |-- †Gargoyleosaurus
      `--+-- †Gastonia
         `--+-- †Gobisaurus
            `--+-- †Minmi
               `--+-- †Pinacosaurus
                  `--+-- †Talarurus
                     `--+--o Shamosaurinae
                        |  |-- †Shamosaurus
                        |  `-- †Tsagantegia
                        `--o †Ankylosaurinae
                           |--+-- †Tarchia
                           |  `-- †Saichania
                           |-- †Tianzhenosaurus
                           |-- †Nodocephalosaurus
                           |-- †Shanxia
                           |-- †Ankylosaurus
                           `-- †Euoplocephalus

After Lü, Ji, Gao & Li, 2007

<==o Ankylosauria
   |-- †Nodosauridae
   `--+-- †Polacanthidae
      `--o †Ankylosauridae
         |--o Shamosaurinae
         |  |?- †Aletopelta
         |  |?- †Cederpelta
         |  `--+-- †Gobisaurus
         |     `-- †Shamosaurus
         `--o †Ankylosaurinae
            |-- †Ankylosaurus
            `--+-- †Crichtonsaurus
               `--+--+-- †Tarchia
                  |  `--+-- †Saichania
                  |     `-- †Tsagantegia
                  `--+-- †Talarurus
                     `--+-- †Euoplocephalus
                        `--+-- †Nodocephalosaurus
                           |-- †Tianzhenosaurus
                           `-- †Pinacosaurus

After Carpenter, 2001:

<==o †Ankylosauria
   |-- †Minmi
   `--+--o †Nodosauridae
      |  |?- †Propanoplosaurus
      |  |--+-- †Panoplosaurus
      |  |  `--+-- †Stegopelta
      |  |     `--+-- †Niobrarasaurus
      |  |        `--+-- †Texasetes
      |  |           `--+-- †Amanantarx
      |  |              `-- †Edmontonia
      |  `--+-- †Anoplosaurus
      |     `--+--+-- †Nodosaurus
      |        |  `-- †Struthiosaurus
      |        `--+-- †Sauropelta
      |           `--+-- †Pawpawsaurus
      |              `-- †Silvisaurus
      `--o †Ankylosauroidea 
         |--o †Polacanthidae 
         |  |--+-- †Gargoyleosaurus
         |  |  `--+-- †Hylaeosaurus
         |  |     `-- †Mymoorapelta
         |  `--+-- †Gastonia
         |     `--+-- †Hoplitosaurus
         |        `-- †Polacanthus
         `--o †Ankylosauridae
            |--o Shamosaurinae
            |  |?- †Aletopelta
            |  |?- †Cederpelta
            |  `--+-- †Gobisaurus
            |     `-- †Shamosaurus
            `--o †Ankylosaurinae
               |-- †Ankylosaurus
               `--+?- †Crichtonsaurus
                  `--+--+-- †Tarchia
                     |  `--+-- †Saichania
                     |     `-- †Tsagantegia
                     `--+-- †Talarurus
                        `--+-- †Euoplocephalus
                           `--+-- †Nodocephalosaurus
                              `-- †Pinacosaurus

Reference(s):