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Lexovisaurus phillipsi

Reptilia - Stegosauridae

Taxonomy
Iguanodon phillipsii was named by Seeley (1869). Its type specimen is SMC B53408, a maxilla (left femur), and it is a 3D body fossil. Its type locality is Priodontognathus type (PROXY), which is in an Oxfordian marine sandstone in the Calcareous Grit Formation of the United Kingdom.

It was recombined as Priodontognathus phillipsi by Lydekker (1904), Huene (1927) and Swinton (1936); it was recombined as Dacentrurus phillipsi by Hennig (1915) and Galton (1985); it was recombined as Omosaurus phillipsii by Hoffstetter (1957); it was recombined as Dacentrurus phillipsii by Kuhn (1964); it was recombined as Lexovisaurus phillipsi by Ulansky (2014) and Ulansky (2014); it was misspelled as Iguanodon phillipsi by Woodward and Sherborn (1890), Seeley (1893), Mansel-Pleydell (1896) and Van Den Broeck (1900); it was considered a nomen dubium by Galton (1983), Galton (1990), Ford (2000), Carpenter (2001), Vickaryous et al. (2004), Galton and Upchurch (2004), Maidment et al. (2008) and Ruiz-Omeñaca et al. (2013); it was recombined as Priodontognathus phillipsii by Seeley (1875), Sauvage (1880), Etheridge (1882), Nopcsa (1901), Galton (1980), Galton (1980), Galton (1981), Galton (1983), Clark (2001), Barrett (2001), Naish and Martill (2008) and Blows and Honeysett (2014).

Synonymy list
YearName and author
1869Iguanodon phillipsii Seeley p. xix figs. Pl. 20
1875Priodontognathus phillipsii Seeley p. 439
1880Priodontognathus phillipsii Sauvage p. 523
1882Priodontognathus phillipsii Etheridge p. 213
1890Iguanodon phillipsi Woodward and Sherborn p. 276
1893Priodontognathus phillipsi Seeley p. 57
1896Iguanodon phillipsii Mansel-Pleydell p. 119
1900Iguanodon phillipsi Van Den Broeck p. 92
1901Priodontognathus phillipsii Nopcsa p. 215
1904Priodontognathus phillipsi Lydekker p. 61
1915Dacentrurus phillipsi Hennig p. 11
1927Priodontognathus phillipsi Huene p. 271
1936Priodontognathus phillipsi Swinton p. 572
1957Omosaurus phillipsii Hoffstetter pp. 540-541
1964Dacentrurus phillipsii Kuhn p. 34
1980Priodontognathus phillipsii Galton p. 487
1981Priodontognathus phillipsii Galton p. 39
1983Priodontognathus phillipsii Galton p. 16
1985Dacentrurus phillipsi Galton p. 235 fig. 15
2001Priodontognathus phillipsii Barrett p. 42 fig. 2.10
2001Priodontognathus phillipsii Clark p. 22
2008Priodontognathus phillipsii Naish and Martill p. 615
2014Priodontognathus phillipsii Blows and Honeysett p. 835
2014Lexovisaurus phillipsi Ulansky p. 6

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Thyreophora()
—Stegosauria()
familyStegosauridae
genusLexovisaurus
speciesphillipsi()

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.

†Lexovisaurus phillipsi Seeley 1869
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Diagnosis
ReferenceDiagnosis
P. M. Galton 1980Maxilla with offset anteromedial process fitting into premaxilla and with separate lateral and medial sheets fordally. Eighteen proportionally large maxillary teeth with uniformly enamelled and unornamented lateral and medial surfaces, crowns acute and slightly recurved posteriorly with nine acute denticles anteriorly and seven posteriorly, medial cingulum as two subcrescents separated by a small space with the ventral part curving downward, and the ventral edge bears many fine denticles.
P. M. Galton 1983Maxilla with offset anteromedial process fitting into premaxilla and ith separate lateral and medial sheets dorsally. Eighteen proportionally large maxillary teeth with uniformly enamelled and unornamented lateral and medial surfaces, crowns acute and slightly recurved posteriorly with nine acute denticles anteriorly and seven posteriorly, medial cingulum as two subcrescents separated by a small space with the ventral part curving downward and the ventral edge bears many fine denticles.