Invalid subtaxa: Apraedentalia Huene 1948, Cryptodraco Lydekker 1889 [nomen dubium], Cryptodraco eumerus Seeley 1875 [nomen dubium], Cryptosaurus emerus Seeley 1875 [nomen dubium], Cryptosaurus eumerus Seeley 1875 [nomen dubium]
Full reference: H. F. Osborn. 1923. Two Lower Cretaceous dinosaurs of Mongolia. American Museum Novitates 95:1-10
Parent taxon: Thyreophora according to P.-E. Dieudonné et al. 2020
See also Arbour et al. 2014, Arbour and Evans 2017, Álvarez Nogueira et al. 2025, Bakker 1986, Bakker and Galton 1974, Benton 1979, Benton 1990, Bonaparte 1978, Brown et al. 2017, Buchholz 2002, Buffetaut 1995, Butler et al. 2008, Carpenter 2001, Carroll 1988, Charig 1967, Chure et al. 2006, Coombs and Deméré 1996, de Valais et al. 2003, Delair 1960, Dong 1993, Ford 2000, Galton 1980, Galton 1980, Galton 1983, Gasparini et al. 2015, Han et al. 2012, Huene 1909, Huene 1948, Huene 1954, Krebs 1974, Kuhn 1964, Kuhn 1966, Leahey et al. 2015, Lydekker 1889, Lydekker 1904, Maidment et al. 2008, Maidment et al. 2020, Maidment et al. 2006, Maryanska and Osmólska 1985, McGinnis 1982, McIntosh 1981, Molnar 1984, Murray et al. 2019, Naish and Martill 2008, Nopcsa 1901, Norman et al. 2004, Ostrom 1965, Ostrom 1980, Parish and Barrett 2004, Parsch 1963, Paulina-Carabajal et al. 2021, Peng et al. 2001, Penkalski and Tumanova 2017, Pereda Suberbiola and Galton 2001, Romer 1956, Romer 1966, Rozadilla et al. 2021, Russell 1984, Sánchez-Hernández et al. 2007, Sauvage 1880, Seeley 1875, Sereno 1986, Sereno 1998, Sereno 1999, Swinton 1970, Tatarinov 1964, Thulborn 1970, Thulborn 1971, Thulborn 1974, Thurmond and Jones 1981, Tumanova 1987, Vickaryous et al. 2004, Weishampel 2004, Woodward and Sherborn 1890, Yang et al. 2013, Zheng et al. 2018, Zhu et al. 2024 and Zittel 1890
Sister taxa: Andhrasaurus, Bienosaurus, Bienosaurus lufengensis, Emausaurus, Jakapil, Lusitanosaurus, Lusitanosaurus liasicus, Omosaurus hastiger, Peishansaurus, Scelidosauria, Scelidosauridae, Scelidosaurus, Scelidosaurus arizonensis, Scutellosaurus, Sinopeltosaurus, Stegosauria, Stegosaurides, Stegosauromorpha, Tatisaurus, Taveirosaurus, Thyreophoroidea, Yuxisaurus
Subtaxa: Acanthopholis Acanthopholis eucercus Acanthopholis macrocercus Ankylosauridae Brachypodosaurus Crichtonsaurus Cryptosaurus Dracopelta Heishansaurus Hierosaurus Kunbarrasaurus Metatetrapous Nodosauridae Nodosauroidea Palaeoscincus Palaeoscincus costatus Parankylosauria Polacanthidae Polacanthoides Priconodon Priodontognathus Qijiangpus Rhadinosaurus Rhodanosaurus Sarcolestes Sinankylosaurus Spicomellus Stegosaurus madagascariensis Tianchiasaurus Vectipelta Zhejiangosaurus