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Dystrophaeus viaemalae

Reptilia

Taxonomy
Dystrophaeus viaemalae was named by Cope (1877). Its type specimen is USNM 2364, a partial skeleton (humerus, three metarsals, distal end of ulna, probable sternum, and fragments), and it is a 3D body fossil. Its type locality is East Canyon Quarry, Painted Canyon, which is in an Oxfordian crevasse splay sandstone in the Morrison Formation of Utah. It is the type species of Dystrophaeus.

Synonymy list
YearName and author
1877Dystrophaeus viaemalae Cope
1878Dystrophaeus viaemalae Cope p. 84
1896Dystrophaeus viaemalae Marsh p. 152
1901Dystrophaeus viaemalae Nopcsa p. 213
1902Dystrophaeus viaemalae Hay p. 497
1904Dystrophaeus viaemalae Huene pp. 319-333
1916Dystrophaeus viaemalae Mook p. 135
1927Dystrophaeus viaemalae Huene p. 457
1930Dystrophaeus viaemalae Hay p. 201
1970Dystrophaeus viaemalae Steel p. 65
1979Dystrophaeus viaemalae Madsen and Miller p. 19
1990Dystrophaeus viaemalae McIntosh p. 391
1999Dystrophaeus viaemalae Breithaupt p. 60
2002Dystrophaeus viaemalae Wilson p. 248
2004Dystrophaeus viaemalae Upchurch et al. p. 261
2006Dystrophaeus viaemalae Chure et al. p. 236
2006Dystrophaeus viaemalae Mateus p. 231
2013Dystrophaeus viaemalae Tschopp and Mateus p. 880
2018Dystrophaeus viaemalae Maltese et al. p. 2

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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
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
genusDystrophaeus
speciesviaemalae

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.

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Diagnosis
No diagnoses are available
Measurements
partNmean
? ulna diameter1150.0

Composition: hydroxyapatiteinfrao
Entire body: yesinfrao
Adult length: 10 to < 100infrao
Adult width: 10 to < 100infrao
Adult height: 10 to < 100infrao
Thickness: thickinfrao
Architecture: compact or denseinfrao
Form: sphericalinfrao
Ontogeny: accretion, modification of partsinfrao
Grouping: gregariousinfrao
Environment: terrestrialinfrao
Locomotion: actively mobileinfrao
Life habit: ground dwellinginfrao
Diet: herbivoreinfrao
Reproduction: oviparousinfrao
Dispersal: direct/internalinfrao
Dispersal 2: mobileinfrao
Created: 2004-12-14 12:49:10
Modified: 2004-12-14 14:49:10
Source: infrao = infraorder
Reference: Marsh 1875

Age range: Late/Upper Oxfordian or 161.20000 to 155.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Oxfordian161.2 - 155.7USA (Utah) Dystrophaeus viaemalae (type locality: 28360)