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Masiakasaurus knopfleri

Reptilia - Noasauridae

Taxonomy
Masiakasaurus knopfleri was named by Sampson et al. (2001). Its type specimen is University of Antananarivo 8680, a mandible, and it is a 3D body fossil. Its type locality is MAD93-18 (SUNY), which is in a Maastrichtian channel sandstone in the Maevarano Formation of Madagascar. It is the type species of Masiakasaurus.

Synonymy list
YearName and author
2001Masiakasaurus knopfleri Sampson et al. p. 504
2002Masiakasaurus knopfleri Carrano et al.
2003Masiakasaurus knopfleri Rauhut p. 33
2004Masiakasaurus knopfleri Carrano et al. p. 44A
2004Masiakasaurus knopfleri Novas et al. p. 98 fig. 12
2004Masiakasaurus knopfleri Tykoski and Rowe p. 49
2005Masiakosaurus knopfleri Yates p. 114
2006Masiakasaurus knopfleri Coria et al. p. 1288
2007Masiakasaurus knopfleri Sampson and Witmer p. 38
2007Masiakasaurus knopfleri Smith p. 104
2008Masiakasaurus knopfleri Carrano and Sampson p. 196
2008Masiakasaurus knopfleri Maganuco et al. p. 245
2010Masiakasaurus knopfleri Agnolin and Chiarelli p. 295
2010Masiakasaurus knopfleri Novas et al. p. 58
2010Masiakasaurus knopfleri Smith et al. p. 930
2011Masiakasaurus knopfleri Carrano et al. p. 3
2012Masiakasaurus knopfleri Candeiro et al. p. 326
2012Masiakasaurus knopfleri Carrano et al. pp. 235-236
2012Masiakasaurus knopfleri Lindoso et al. p. 119
2014Masiakasaurus knopfleri Delcourt and Grillo p. 312
2016Masiakasaurus knopfleri Griffin and Nesbitt p. 2

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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
Diapsida()
RankNameAuthor
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
suborderCeratosauria()
superfamilyAbelisauroidea
familyNoasauridae
genusMasiakasaurus
speciesknopfleri

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
M. T. Carrano et al. 2002Abelisauroid theropod with anterior four dentary teeth procumbent, the first inclined at 10° above the horizontal and lying in an alveolus that is slung below the ventral margin of the dentary. First alveolus large and ventrally expanded, lying lateral to an anteroposteriorly long dentary symphysis. Lower dentition markedly heterodont: the first four teeth are weakly spoon-shaped, elongate, and terminate in a posteriorly hooked, pointed apex. Anterior dentary teeth bear two weakly serrated posterior carinae and have faint posterior ridges; more posterior teeth are transversely compressed, recurved, and have a serrated posterior carina.
M. T. Carrano and S. D. Sampson 2008Abelisauroid with: (1) four most anterior dentary teeth procumbent, with the first set in a large, ventrally expanded alveolus that is almost horizontal in orientation, (2) a strongly heterodont lower dentition, grading from elongate, weakly serrated, apically round with labiolingually positioned carinae (anteriorly) to increasingly recurved, transversely compressed, with mesiodistally positioned carinae (posteriorly) (modified from Sampson et al. 2001: 504).
M. T. Carrano et al. 2012Abelisauroid with: (1) four anteriormost dentary teeth procumbent, with first set in large, ventrally expanded alveolus that is almost horizontally oriented; and (2) strongly heterodont lower dentition, grading from elongate, weakly serrated, apically round teeth with labiolingually positioned carinae (anteriorly) to increasingly recurved, transversely compressed teeth with mesiodistally positioned carinae (posteriorly) (all from Sampson et al. 2001).