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Tarchia

Reptilia - Ankylosauridae

Synonymy list
YearName and author
1977Tarchia Maryanska pp. 98, 105, 108
1977Tarchia Tumanova p. 92
1978Tarchia Tumanova p. 480
1983Tarchia Tumanova p. 110
1986Tarchia Sereno
1987Tarchia Tumanova
1988Tarchia Carroll
1997Tarchia Barsbold p. 450
1998Tarchia Kirkland p. 273 fig. 3
2000Tarchia Ford p. 176
2000Tarchia Tumanova p. 527
2001Tarchia Carpenter p. 457
2001Tarchia Vickaryous et al. p. 1774
2004Tarchia Vickaryous et al. p. 364
2009Tarchia Parsons and Parsons p. 736 fig. 18
2010Tarchia Longrich et al. p. 955
2012Tarchia Arbour et al. p. 56
2013Tarchia Arbour et al.
2014Tarchia Arbour et al. p. 11 fig. 6
2014Tarchia Arbour et al.
2014Tarchia Han et al. p. 14 fig. 11
2017Tarchia Penkalski and Tumanova

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
RankNameAuthor
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Genasauria
Thyreophora()
Ankylosauria()
familyAnkylosauridae
genusTarchia

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.

Diagnosis
ReferenceDiagnosis
T. A. Tumanova 1978A large ankylosaur with laterally directed postorbital spines and with a weakly developed secondary bony palate; choanae located on anterior part of palate. Occipital condyle posteroventrally directed, large occipital foramen extended along the vertical axis, occipital part of skull and occipital condyle visible from above, paroccipital processes perpendicular to calvaria; upper ends of quadrates adjoining paroccipital processes. Quadrate inclined, articulation of jaw on a level with the posterior margin of the orbit. Maximum width of premaxillary part equal to distance between posterior ends of maxillaries.
T. A. Tumanova 1987Premaxillary part of beak oval in shape, width equal to distance between rear maxillary teeth (fig. 3); anterior and posterior maxillary shelves well developed; plane of palatal bone raised horizontally; anterior wall of pterygoids inclined forwards; plane of occiput slightly inclined posteriorly; occipital condyle widely oval with articular area slightly projecting and oriented posteroventrally; paroccipital process high, short, perpendicular to skull roof; quadrate and paroccipital process not fused; maxillary condyle of quadrate on level of rear border of orbit; ventral surface of basioccipital without distinct relief.
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
References: Kiessling 2004, Marsh 1875

Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1Mongolia (Omnogov) Ankylosauridae indet. (181421)
Campanian - Maastrichtian83.6 - 66.0Mongolia (Omnogov) Ankylosauridae indet. (38698 38700 180299) Dyoplosaurus sp. (38699) T. gigantea (37006)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Mongolia (Omnogov) Dyoplosaurus giganteus (53227)
Maastrichtian72.1 - 66.0Mongolia (Omnogov) Ankylosauria indet. (55258) Dyoplosaurus giganteus (179625)