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Dryosaurus elderae

Reptilia - Dryosauridae

Taxonomy
Dryosaurus elderae was named by Carpenter and Galton (2018). Its type specimen is CM 3392, a partial skeleton, and it is a 3D body fossil. Its type locality is Dinosaur National Monument Quarry (CM), which is in a Tithonian coarse channel fill sandstone in the Morrison Formation of Utah.

Synonymy list
YearName and author
2018Dryosaurus elderae Carpenter and Galton p. 190 figs. 4, 27, 28Q–28AA, 28FF, 29I, 29J, 30D, 31B–31J
2019Dryosaurus elderae Herne et al. p. 560
2021Dryosaurus elderae Sánchez-Fenollosa et al. p. 54

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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()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
—Dryomorpha
familyDryosauridae
genusDryosaurus
specieselderae

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.

†Dryosaurus elderae Carpenter and Galton 2018
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Diagnosis
ReferenceDiagnosis
K. Carpenter and P. M. Galton 2018Teeth with broad midline ridge and up to three fine longitudinal ridges on the enameled surface; horizontal maxillary ramus of jugal below orbit deep, compared with slender ramus in D. altus and D. lettowvorbecki (or Dysalotosaurus lettowvorbecki); basal tuberae are massive projections separated by a midline sulcus, versus posteroventral sheet or wedge and no sulcus in D. altus and D. lettowvorbecki; anterior cervical vertebrae low compared to length, comparably shorter and taller in D. altus and D. lettowvorbecki; ilium long and low, especially the postacetabular process, more similar to D. lettowvorbecki than D. altus.
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: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-08-25 05:58:40
Modified: 2005-08-25 07:58:40
Source: g = genus, subo = suborder, o = order
References: Peczkis 1995, Marsh 1875, Benton 1983

Age range: Early/Lower Tithonian or 150.80000 to 145.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Tithonian150.8 - 145.0USA (Utah) Dryosaurus altus, Laosaurus gracilis (type locality: 21852)