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

Stegosaurus duplex

Reptilia - Stegosauridae

Taxonomy
Stegosaurus duplex was named by Marsh (1887). Its type specimen is YPM 1858, a set of postcrania, and it is a 3D body fossil. Its type locality is Quarry 11, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian wet floodplain mudstone in the Morrison Formation of Wyoming.

It was synonymized subjectively with Stegosaurus ungulatus by Lull (1910), Gilmore (1914), Hennig (1915) and Bakker (1990); it was synonymized subjectively with Stegosaurus armatus by Kuhn (1964), Galton (1990), Olshevsky and Ford (1993), Galton and Upchurch (2004) and Maidment et al. (2008).

Synonymy list
YearName and author
1887Stegosaurus duplex Marsh p. 416
1890Stegosaurus duplex Zittel p. 748
1893Stegosaurus duplex Winkler p. 105
1896Stegosaurus duplex Marsh p. 193
1901Stegosaurus duplex Nopcsa p. 215
1902Stegosaurus duplex Hay p. 496
1916Stegosaurus duplex Mook p. 145
1930Stegosaurus duplex Hay p. 234
2010Stegosaurus duplex Galton p. 194
2014Stegosaurus duplex Ulansky p. 7

Is something missing? Join the Paleobiology Database and enter the data

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
genusStegosaurus
speciesduplex

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.

†Stegosaurus duplex Marsh 1887
show all | hide all
Diagnosis
No diagnoses are available
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
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-08-25 06:07:59
Modified: 2005-08-25 08:07:59
Source: g = genus, o = order
References: Marsh 1875, Peczkis 1995

Age range: base of the Kimmeridgian to the top of the Tithonian or 157.30000 to 145.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Kimmeridgian - Tithonian157.3 - 145.0USA (Wyoming) Stegosaurus ungulatus (type locality: 39369)