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Nigersaurus taqueti

Reptilia

Taxonomy
Nigersaurus taqueti was named by Sereno et al. (1999). Its type specimen is MNN GAD512 and is a 3D body fossil. Its type locality is Nigersaurus type, Gadoufaoua, "niveau des innocents", which is in an Aptian/Albian terrestrial horizon in the Elrhaz Formation of Niger. It was considered monophyletic by Sereno et al. (1999).

Synonymy list
YearName and author
1999Nigersaurus taqueti Sereno et al.
2002Nigersaurus taqueti Gallina et al. p. 10R
2002Nigersaurus taqueti Wilson p. 274
2003Nigersaurus taqueti Torcida Fernández-Baldor et al. p. 209
2004Nigersaurus taqueti Upchurch et al. p. 263
2005Nigersaurus taqueti Gallina and Apesteguía p. 153
2005Nigersaurus taqueti Salgado and Coria p. 447
2005Nigersaurus taqueti Sereno and Wilson pp. 157-158 figs. 5.1-5.8
2007Nigersaurus taqueti Apesteguía p. 536
2007Nigersaurus taqueti Naish and Martill p. 499
2008Nigersaurus taqueti Allain and Aquesbi p. 400
2009Nigersaurus taqueti Mannion p. 522
2012Nigersaurus taqueti Díez Díaz et al. p. 267
2012Nigersaurus taqueti Haluza et al. p. 223
2012Nigersaurus taqueti Ibiricu et al. p. 220
2012Nigersaurus taqueti Knoll et al. p. 2
2013Nigersaurus taqueti Bertozzo et al. p. 119
2013Nigersaurus taqueti Tschopp and Mateus p. 880
2014Nigersaurus taqueti Mocho et al.
2015Nigersaurus taqueti Ibiricu et al. p. 434
2018Nigersaurus taqueti Hassler et al. p. 2
2020Nigersaurus taqueti Sakagami and Kawabe p. 12
2021Nigersaurus taqueti Paulina-Carabajal and Calvo p. 2
2023Nigersaurus taqueti Poropat et al. p. 29

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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()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Diplodocoidea()
—Diplodocimorpha
—Rebbachisauridae()
—Khebbashia
—Nigersaurinae
genusNigersaurus
speciestaqueti

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.

†Nigersaurus taqueti Sereno et al. 1999
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Diagnosis
ReferenceDiagnosis
P. C. Sereno et al. 1999Rebbachisaurid characterized by elongate frontal (much narrower than long) with a marked cerebral fossa on the frontal, transversely oriented upper and lower tooth rows, extension of the tooth rows lateral to the plane of the principal ramus of the lower jaw, tooth crowns with prominent medial and lateral marginal ridges, dorsal vertebrae with paired pneumatic spaces at the base of the neural spines, and a prominent rugosity on the medial aspect of the base of the scapular blade (Fig. 2E, ru).
P. C. Sereno and J. A. Wilson 2005Rebbachisaurid sauropod characterized by five accessory fenestrae in the jugal, surangular, and angular; tooth number increased to 20 and to 34 in the maxilla and dentary, respectively; tooth replacement increased to as many as 10–12 in a single column; premaxilla and dentary lacking alveolar septa; maxilla with oval (vertically elongated) replacement foramina; extension of the dentary tooth row lateral to the sagittal plane of the lower jaw; subcircular mandibular symphysis; crowns with prominent mesial (medial) and distal (lateral) ridges; scapula with prominent rugosity on the medial aspect of the proximal end of the blade.