PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Scelidosaurus harrisonii

Reptilia

Taxonomy

Scelidosaurus harrisonii was named by Owen (1861). Its type specimen is BMNH R1111, a skeleton, and it is a 3D body fossil. Its type locality is lower cliff face, Charmouth (BMNH), which is in a Sinemurian marine marl in the Charmouth Mudstone Formation of the United Kingdom.

It was corrected as Scelidosaurus harrisoni by Swinton (1934), Delair (1960) and Gierlinski and Pienkowski (1999); it was misspelled as Scelidosaurus harrisoni by Delair (1960), Tatarinov (1964), Kuhn (1964), Ginsburg (1964), Charig (1967), Newman (1968), Macfadyen (1970), Swinton (1970), Thulborn (1974), Galton (1975), Thulborn (1977), Galton (1985), Padian (1989), Martill (1991), Vickaryous and Ryan (1997), Padian (1997), Buffetaut (1997), Pereda Suberbiola and Barrett (1999), Le Loeuff et al. (1999), Avanzini et al. (2001), Carpenter (2001), Norman (2001), Barrett (2001), Norman et al. (2004), Langer and Benton (2006), Hadri et al. (2007), Naish and Martill (2007), Norman et al. (2007), Naish and Martill (2008), Butler et al. (2008), Irmis and Knoll (2008), Carpenter et al. (2011), Han et al. (2012), Kirkland et al. (2013), Leahey and Salisbury (2013), Blows and Honeysett (2014), Ulansky (2014), Ulansky (2014), Arbour et al. (2014), Cruzado-Caballero et al. (2019), Galton (2019), Norman (2020), Moro et al. (2020), Desojo et al. (2020) and Breeden et al. (2021).

Synonymy list

Year	Name and author
1861	Scelidosaurus harrisonii Owen
1862	Scelidosaurus harrisonii Owen p. 1
1862	Scelidosaurus harrisoni Owen p. 121
1870	Scelidosaurus harrisonii Cope p. 90
1879	Scelidosaurus harrisoni Prestwich p. 193
1882	Scelidosaurus harrisonii Quenstedt p. 180
1882	Scelidosaurus harrisonii Sauvage p. 18
1885	Scelidosaurus harrisonii Woodward p. 11
1888	Scelidosaurus harrisonii Lydekker p. 181
1888	Scelidosaurus harrisoni Mansel-Pleydell p. 36
1889	Scelidosaurus harrisoni Lydekker p. 324
1890	Scelidosaurus harrisoni Woodward and Sherborn p. 283
1890	Scelidosaurus harrisoni Zittel p. 741
1895	Scelidosaurus harrisonii Marsh p. 687
1896	Scelidosaurus harrisoni Mansel-Pleydell p. 119
1896	Scelidosaurus harrisonii Marsh p. 229 figs. Pl. 83
1898	Scelidosaurus harrisoni Woodward p. 210
1899	Scelidosaurus harrisonii Lambe p. 188
1901	Scelidosaurus harrisoni Gadow p. 425
1901	Scelidosaurus harrisonii Nopcsa p. 215
1902	Scelidosaurus harrisoni Mansel-Pleydell p. lxxxi
1913	Scelidosaurus harrisoni Tornier p. 373
1915	Scelidosaurus harrisonii Hennig p. 10
1928	Scelidosaurus harisoni Perrier p. 3087
1934	Scelidosaurus harrisoni Swinton p. 47
1960	Scelidosaurus harrisoni Delair p. 84
1964	Scelidosaurus harrisonii Ginsburg p. 2366
1964	Scelidosaurus harrisonii Kuhn p. 33
1964	Scelidosaurus harrisoni Tatarinov p. 572
1967	Scelidosaurus harrisoni Charig p. 715
1968	Scelidosaurus harrisoni Newman p. 40
1970	Scelidosaurus harrisoni Macfadyen p. 99
1970	Scelidosaurus harrisonii Swinton p. 235
1974	Scelidosaurus harrisonii Thulborn p. 169
1975	Scelidosaurus harrisoni Galton pp. 741-742
1977	Scelidosaurus harrisonii Thulborn p. 727
1985	Scelidosaurus harrisonii Galton p. 251
1989	Scelidosaurus harrisoni Padian p. 439
1991	Scelidosaurus harrisoni Martill p. 61
1997	Scelidosaurus harrisonii Buffetaut p. 213
1997	Scelidosaurus harrisonii Padian p. 416
1997	Scelidosaurus harrisoni Vickaryous and Ryan p. 490
1999	Scelidosaurus harrisoni Gierlinski and Pienkowski p. 335
1999	Scelidosaurus harrisonii Le Loeuff et al. p. 218
1999	Scelidosaurus harrisonii Pereda Suberbiola and Barrett p. 177
2001	Scelidosaurus harrisoni Avanzini et al. p. 240
2001	Scelidosaurus harrisonii Barrett p. 26
2001	Scelidosaurus harrisonii Carpenter p. 457
2001	Scelidosaurus harrisonii Norman pp. 3-24
2004	Scelidosaurus harrisonii Norman et al. p. 337
2006	Scelidosaurus harrisonii Langer and Benton p. 320 fig. 5
2007	Scelidosaurus harrisonii Hadri et al. p. 152
2007	Scelidosaurus harrisonii Naish and Martill p. 494
2007	Scelidosaurus harrisonii Norman et al. p. 867
2008	Scelidosaurus harrisonii Butler et al. pp. 10-11
2008	Scelidosaurus harrisoni Irmis and Knoll p. 121
2008	Scelidosaurus harrisonii Naish and Martill p. 614
2011	Scelidosaurus harrisoni Carpenter et al. p. 6
2012	Scelidosaurus harrisonii Han et al. p. 1391 fig. 14
2013	Scelidosaurus harrisoni Kirkland et al. p. 5
2013	Scelidosaurus harrisonii Leahey and Salisbury p. 251
2014	Scelidosaurus harrisonii Arbour et al. p. 2
2014	Scelidosaurus harrisoni Blows and Honeysett p. 837
2014	Scelidosaurus harrisonii Ulansky p. 4
2019	Scelidosaurus harrisonii Cruzado-Caballero et al. p. 216
2019	Scelidosaurus harrisonii Galton p. 211 fig. 4
2020	Scelidosaurus harrisonii Desojo et al. p. 27
2020	Scelidosaurus harrisonii Moro et al.
2020	Scelidosaurus harrisonii Norman p. 13
2021	Scelidosaurus harrisonii Breeden et al. p. 9

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia

Rank	Name	Author
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Thyreophora	()
genus	Scelidosaurus
species	harrisonii

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.

†Scelidosaurus harrisonii Owen 1861

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Diagnosis

Reference	Diagnosis
D. B. Norman 2020	(Cranial only – the equivalent Diagnosis in the second part of this monograph series will add autapomorphies identified in the postcranial endoskeleton. The third part will provide a synthetic Diagnosis based on the total anatomy of this taxon). Rugose, mound-shaped projection on the premaxillae supports a small, keratinous beak; facet for the posteromedial process of the premaxilla positioned on the laterodorsal surface of the nasal; small, bean-shaped, shallow antorbital fossa delimited by a sharp edge ventrally; the sagittal crest comprises two parallel crests separated by a narrow midline trough; localized exostosis restricted largely to the angular on the mandible (no osteoderm present); epivomer plates form part of the roof of the nasal chambers; epipterygoid bone forms a small, vertically oriented, conical structure with a laterally flattened base applied to the dorsolateral surface of the pterygoid; large oblique facets on the ventrolateral wall of the basioccipital; expanded and ventrally faceted pedicle on the opisthotic; elongate epistyloid bones project obliquely (posteroventrally) from the skull; spur-like structure on the dorsal edge of the paroccipital encloses the post-temporal fenestra; a pair of large curved osteodermal horns are sutured to the posterodorsal surface of the occiput.