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Shamosaurus

Reptilia - Ankylosauridae

Synonymy list
YearName and author
1983Shamosaurus Tumanova
1986Shamosaurus Sereno
1986Shamosaurus Tumanova p. 75
1987Shamosaurus Tumanova
1997Shamosaurus Barsbold p. 450
1997Shamosaurus Sereno p. 440 fig. 2
1997Shamosaurus Vickaryous and Ryan p. 491
1998Shamosaurus Kirkland p. 273 fig. 3
1998Shamosaurus Sereno p. 67 fig. 5
2000Shamosaurus Ford p. 176
2000Shamosaurus Tumanova p. 519
2001Shamosaurus Barrett p. 41
2001Shamosaurus Carpenter p. 457
2001Shamosaurus Vickaryous et al. p. 1774
2004Shamosaurus Vickaryous et al. p. 364
2007Shamosaurus Lü et al. p. 889 fig. 1
2009Shamosaurus Osi and Makádi p. 239 fig. 10
2009Shamosaurus Parsons and Parsons p. 736 fig. 18
2010Shamosaurus Amiot et al. p. 353
2011Shamosaurus Kirkland and Loewen p. 5
2014Shamosaurus Han et al. p. 14 fig. 11

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Genasauria
Thyreophora()
Ankylosauria()
familyAnkylosauridae
genusShamosaurus

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 1983Large ankylosaur having the roof of its skull completely covered with finely grained osteodermal shields, the postorbital osteoderms do not coalesce into spines, laterally the
osteodermal covering does not close the quadrate condyle region, the orbits are located at the middle of the skull line and are directed almost entirely to the side (Fig. 3b), the upper region of the premaxillae are covered with osteodermal growths, the forward region of the snout is a narrow oval shape and is much narrower than the distance between the back teeth of the upper jaw, the rear maxillar shelf is well developed, the ventral surface of the palate bones is sloped laterally, the jaw articulation is far behind the rear edge of the orbit, the plane of the condyle is sloped to the rear, the occipital condyle is oriented ventrally, the ventral surface of the basioccipital bone is narrow and circular.
T. A. Tumanova 1986Big ankylosaur with a cranial roof entirely covered with osteodermal scutes; ornamentation of scutes composed of small tubercles; postorbital osteodermal elements not fused into spines; laterally, the osteodermal elements do not cover the region of the condyle of the quadrate; orbits oriented almost exactly laterally, and situated at middle length of the skull; upper part of the premaxillary covered with osteodermal expansions; anterior part of the snout of narrow oval shape, its width far inferior to the distance between posterior upper teeth; posterior maxillary shelf well developed; ventral surface of the palatines inclined laterally; mandibular articulation far behind the posterior border of the orbits; occipital surface inclined backwards; occipital condyle ventrally orientated; ventral surface of the basioccipital rounded, narrow.