PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Saurolophus

Reptilia - Hadrosauridae

Taxonomy

Saurolophus was named by Brown (1912). It is the type genus of Saurolophinae, Saurolophidae, Saurolophini.

It was assigned to Trachodontidae by Brown (1912), Brown (1913), Brown (1914), Brown (1914), Matthew (1915), Lull (1924), Huene (1927); to Ornithopoda by Huene (1958); to Saurolophidae by Huene (1959); to Hadrosauridae by Russell (1930), Rozhdestvensky (1952), Romer (1956), Parsch (1963), Kuhn (1964), Romer (1966), Charig (1967), Swinton (1970), Thulborn (1974), Rozhdestvensky (1977), Bonaparte (1978), Rage (1981), Milner and Norman (1984), Russell (1984), Carroll (1988), Tsogtbaatar (1997), Eberth (1997), Currie (2000); to Hadrosaurinae by Sternberg (1952), Sternberg (1953), Sternberg (1953), Sternberg (1954), Hopson (1975), Brett-Surman (1979), Maryanska and Osmólska (1981), Weishampel and Weishampel (1983), Maryanska and Osmólska (1984), Weishampel and Horner (1990), Chapman and Brett-Surman (1990), Hunt and Lucas (1992), Forster and Sereno (1994), Sereno (1998), Godefroit et al. (1998), Norman and Sues (2000), You et al. (2003), Horner et al. (2004), Godefroit et al. (2004), Kirkland et al. (2006), Prieto-Márquez et al. (2006), Godefroit et al. (2008), Pereda-Suberbiola et al. (2009), Cruzado-Caballero et al. (2010); to Hadrosaurinae by Bell (2011); to Saurolophini by Godefroit et al. (2012), Prieto-Márquez et al. (2015), Lehman et al. (2016), Cruzado-Caballero and Powell (2017); and to Saurolophinae by Brown (1914), Brown (1916), Lambe (1918), Lambe (1920), Gilmore (1924), Nopcsa (1928), Hay (1930), Gilmore (1933), Nagao (1936), Lull and Wright (1942), Young (1958), Tatarinov (1964), Casamiquela (1964), Kuhn (1966), Russell and Chamney (1967), Horner (1992), Prieto-Márquez (2010), Prieto-Márquez (2010), Prieto-Marquez and Salinas (2010), Prieto-Márquez and Wagner (2010), Ramírez-Velasco et al. (2012), Prieto-Marquez and Wagner (2013), Prieto-Marquez (2013), Bell (2014), Dalla Vecchia (2020).

Species

S. angustirostris, S. osborni

Synonymy list

Year	Name and author
1912	Saurolophus Brown
1913	Saurolophus Brown p. 387
1914	Saurolophus Brown p. 377
1915	Saurolophus Matthew p. 28
1916	Saurolophus Brown p. 701
1918	Saurolophus Lambe p. 138
1920	Saurolophus Lambe pp. 67-68
1924	Saurolophus Gilmore p. 34
1924	Saurolophus Lull p. 241
1927	Saurolophus Huene p. 260
1928	Saurolophus Nopcsa p. 185
1930	Saurolophus Hay p. 217
1930	Saurolophus Russell p. 151
1933	Saurolophus Gilmore p. 62
1936	Saurolophus Nagao p. 213
1942	Saurolophus Lull and Wright p. 133
1952	Saurolophus Rozhdestvensky p. 405
1952	Saurolophus Sternberg p. 149
1953	Saurolophus Sternberg p. 11
1954	Saurolophus Sternberg p. 383
1956	Saurolophus Romer p. 630
1958	Saurolophus Huene p. 206
1958	Saurolophus Young p. 106
1959	Saurolophus Huene p. 122
1963	Saurolophus Parsch p. 8
1964	Saurolophus Casamiquela
1964	Saurolophus Kuhn p. 26
1964	Saurolophus Tatarinov p. 565
1966	Saurolophus Kuhn p. 103
1966	Saurolophus Romer p. 370
1967	Saurolophus Charig p. 716
1967	Saurolophus Russell and Chamney p. 12
1970	Saurolophus Swinton p. 221
1974	Saurolophus Thulborn p. 173
1975	Saurolophus Hopson p. 25
1977	Saurolophus Rozhdestvensky p. 113
1978	Saurolophus Bonaparte p. 466
1979	Saurolophus Brett-Surman p. 561 fig. 1
1981	Saurolophus Maryanska and Osmólska p. 8
1981	Saurolophus Rage p. 68
1983	Saurolophus Weishampel and Weishampel p. 44
1984	Saurolophus Maryanska and Osmólska pp. 130-131
1984	Saurolophus Milner and Norman p. 148
1984	Saurolophus Russell p. 26
1988	Saurolophus Carroll
1990	Saurolophus Chapman and Brett-Surman p. 177
1990	Saurolophus Weishampel and Horner p. 556
1992	Saurolophus Horner p. 16
1992	Saurolophus Hunt and Lucas p. 228
1994	Saurolophus Forster and Sereno p. 25A
1997	Saurolophus Eberth p. 201
1997	Saurolophus Tsogtbaatar p. 15
1998	Saurolophus Godefroit et al. p. 51
1998	Saurolophus Sereno p. 62
2000	Saurolophus Currie p. 277
2000	Saurolophus Norman and Sues p. 466
2003	Saurolophus You et al. p. 152 fig. 3
2004	Saurolophus Godefroit et al. p. 148 fig. 6
2004	Saurolophus Horner et al. p. 441
2006	Saurolophus Kirkland et al. p. 308
2006	Saurolophus Prieto-Márquez et al. p. 938
2008	Saurolophus Godefroit et al. p. 67 fig. 18
2009	Saurolophus Pereda-Suberbiola et al. p. 568 fig. 6
2010	Saurolophus Cruzado-Caballero et al. p. 1510 fig. 4
2010	Saurolophus Prieto-Marquez and Salinas p. 835 fig. 20
2010	Saurolophus Prieto-Márquez p. 5 fig. 2
2010	Saurolophus Prieto-Márquez and Wagner p. 1243 fig. 3
2011	Saurolophus Bell p. 705
2012	Saurolophus Godefroit et al. p. 19
2012	Saurolophus Ramírez-Velasco et al. p. 392
2013	Saurolophus Prieto-Marquez
2013	Saurolophus Prieto-Marquez and Wagner
2014	Saurolophus Bell p. 579
2015	Saurolophus Prieto-Márquez et al. p. 227
2016	Saurolophus Lehman et al. p. 346
2017	Saurolophus Cruzado-Caballero and Powell p. 12 fig. 13
2020	Saurolophus Dalla Vecchia p. 611

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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
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)

Rank	Name	Author
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Cerapoda
—	Ornithopoda	()
—	Clypeodonta
—	Iguanodontia	()
—	Dryomorpha
—	Styracosterna
—	Hadrosauriformes
—	Hadrosauroidea	()
family	Hadrosauridae
subfamily	Hadrosaurinae	Lambe 1918
tribe	Saurolophini
genus	Saurolophus

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.

G. †Saurolophus Brown 1912

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†Saurolophus angustirostris Rozhdestvensky 1952

†Saurolophus osborni Brown 1912

Diagnosis

Reference	Diagnosis
P. R. Bell 2011	Large hadrosaurine hadrosaurid (up to 12 m long) with the following apomorphies: solid, caudodorsally−directed cranial crest composed of the nasals, prefrontals, and frontals that extends posterior to the squamosals in adults; posterodorsal process of prefrontal and frontal united to form dorsal promontorium that buttresses the underside of the nasal crest; frontals tripartite. Differs from other hadrosaurines with the combination of additional characteristics: frontals excluded from the orbital rim by the postorbital−prefrontal complex; two supraorbital elements; parietal excluded by the squamosals from posterodorsal margin of occiput.

Measurements

No measurements are available

Composition:

hydroxyapatiteo

Entire body:

yesg

Adult length:

10 to < 100o

Adult width:

1.0 to < 10o

Adult height:

1.0 to < 10o

Maximum body mass:

3000 kgg

Minimum body mass:

1000 kgg

Architecture:

compact or denseo

Ontogeny:

accretion, modification of partso

Grouping:

gregariouso

Environment:

terrestrialo

Locomotion:

actively mobileo

Life habit:

ground dwellingo

Diet:

herbivoresubo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2005-08-25 05:54:53

Modified:

2005-08-25 07:54:53

Source: g = genus, subo = suborder, o = order

References: Peczkis 1995, Benton 1983, Marsh 1875

Age range: base of the Late/Upper Campanian to the top of the Maastrichtian or 83.60000 to 66.00000 Ma

Collections (26 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Campanian	83.6 - 72.2	USA (Wyoming)	Trachodontidae indet. (45860)
Late/Upper Campanian	83.6 - 72.2	USA (New Mexico)	Saurolophinae indet. (48838)
Late/Upper Campanian - Early/Lower Maastrichtian	83.6 - 66.0	Canada (Alberta)	S. sp. (51966) Trachodon selwyni (150979)
Early/Lower Maastrichtian	72.2 - 66.0	Canada (Alberta)	Hadrosauridae indet. (64430) S. sp. (76062)
Maastrichtian	72.2 - 66.0	Mongolia (Omnogov)	Hadrosauridae indet. (100273 127670 168810) S. angustirostris (37020 53227 65335 127671 127674 179625 180702 180703 180786) S. sp. (55257 100266 100268 127681 127682 168809 180710 220943)