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Suzhousaurus megatherioides

Reptilia - Therizinosauridae

Taxonomy
Suzhousaurus megatherioides was named by Li et al. (2007). Its type specimen is FORDC-GSJB-99, a set of postcrania, and it is a 3D body fossil. Its type locality is Suzhousaurus type, Jiuquan, Yujingzi Basin, which is in an Aptian lacustrine - small shale in the Xiagou Formation of China. It is the type species of Suzhousaurus.

Synonymy list
YearName and author
2007Suzhousaurus megatherioides Li et al. p. 541 figs. 2-3
2008Suzhousaurus megatherioides Li p. 47
2008Suzhousaurus megatherioides Li et al. pp. 769-770
2009Suzhousaurus megatherioides You and Li
2009Suzhousaurus megatherioides Zanno et al. p. S15
2010Suzhousaurus megatherioide You et al. p. 59
2010Suzhousaurus megatherioides Zanno p. 519
2012Suzhousaurus megatherioides Qian et al. p. 343
2012Suzhousaurus megatherioides You et al. p. 171
2013Suzhousaurus megatherioides Pu et al.
2019Suzhousaurus megatherioides Morschhauser et al. p. 36
2019Suzhousaurus megatherioides You et al. p. 4

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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
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptoriformes
—TherizinosauriaRussell 1997
superfamilyTherizinosauroidea
familyTherizinosauridae
genusSuzhousaurus
speciesmegatherioides

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.

†Suzhousaurus megatherioides Li et al. 2007
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Diagnosis
ReferenceDiagnosis
L. E. Zanno 2010Suzhousaurus can be differentiated from all other therizinosaurians by the following autapomorphies: gently rounded craniodorsal margin of preacetabular process of ilium (Li et al. 2008); obturator foramen, craniocaudal width greater than dorsoventral height; obturator notch on pubis deep (approximately half the maximum dorsoventral length of ischiadic peduncle of pubis) and wide (approximating craniocaudal dimension of proximal pubic shaft); pubis short, maximum length nearly subequal with maximum dorsoventral height of ilium; ischiadic shaft distal to ventral caudal process deflected caudally.