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Tsagantegia longicranialis

Reptilia - Ankylosauridae

Taxonomy
Tsagantegia longicranialis was named by Tumanova (1993). Its type specimen is GIN AN MNP No. 700/17, a skull, and it is a 3D body fossil. Its type locality is Tsagan-Teg, which is in a Cenomanian/Santonian terrestrial horizon in the Baynshire Formation of Mongolia. It is the type species of Tsagantegia. It was considered monophyletic by Vickaryous et al. (2004).

Synonymy list
YearName and author
1993Tsagantegia longicranialis Tumanova p. 92 fig. 1
2000Tsagantegia longicranialis Ford p. 176
2000Tsagantegia longicranialis Tumanova p. 521
2001Tsagantegia longicranialis Carpenter p. 457
2004Tsagantegia longicranialis Vickaryous et al. p. 364
2011Tsagantegia longicranialis Carpenter et al. p. 2
2013Tsagantegia longicranialis Kirkland et al. p. 7
2014Tsagantegia longicranialis Arbour et al. p. 11 fig. 6
2014Tsagantegia longicranialis Arbour et al. p. 635
2014Tsagantegia longicranialis Han et al. p. 14 fig. 11
2016Tsagantegia longicranialis Arbour and Currie p. 415

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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()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Thyreophora()
—Ankylosauria()
familyAnkylosauridae
subfamilyAnkylosaurinaeNopcsa 1918
genusTsagantegia
specieslongicranialis

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.

†Tsagantegia longicranialis Tumanova 1993
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Diagnosis
ReferenceDiagnosis
V. M. Arbour and P. J. Currie 2016Uniquely amongst ankylosaurids, has flat cranial caputegulae that are predominantly rhomboidal and trapezoidal. Differs from Saichania and Tarchia in the proportions of the skull (longer than wide), and differs from Gobisaurus and Shamosaurus in the shape of the premaxillary beak (wider and more U-shaped).
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
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: 2004-12-14 12:50:52
Modified: 2004-12-14 14:50:52
Source: o = order
Reference: Marsh 1875

Age range: base of the Cenomanian to the top of the Santonian or 100.50000 to 83.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Cenomanian - Santonian100.5 - 83.6Mongolia (Dornogov) Tsagantegia longicranialis (type locality: 55389)