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Nigersaurus taqueti
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
| Year | Name and author |
|---|---|
| 1999 | Nigersaurus taqueti Sereno et al. |
| 2002 | Nigersaurus taqueti Gallina et al. p. 10R |
| 2002 | Nigersaurus taqueti Wilson p. 274 |
| 2003 | Nigersaurus taqueti Torcida Fernández-Baldor et al. p. 209 |
| 2004 | Nigersaurus taqueti Upchurch et al. p. 263 |
| 2005 | Nigersaurus taqueti Gallina and Apesteguía p. 153 |
| 2005 | Nigersaurus taqueti Salgado and Coria p. 447 |
| 2005 | Nigersaurus taqueti Sereno and Wilson pp. 157-158 figs. 5.1-5.8 |
| 2007 | Nigersaurus taqueti Apesteguía p. 536 |
| 2007 | Nigersaurus taqueti Naish and Martill p. 499 |
| 2008 | Nigersaurus taqueti Allain and Aquesbi p. 400 |
| 2009 | Nigersaurus taqueti Mannion p. 522 |
| 2012 | Nigersaurus taqueti Díez Díaz et al. p. 267 |
| 2012 | Nigersaurus taqueti Haluza et al. p. 223 |
| 2012 | Nigersaurus taqueti Ibiricu et al. p. 220 |
| 2012 | Nigersaurus taqueti Knoll et al. p. 2 |
| 2013 | Nigersaurus taqueti Bertozzo et al. p. 119 |
| 2013 | Nigersaurus taqueti Tschopp and Mateus p. 880 |
| 2014 | Nigersaurus taqueti Mocho et al. |
| 2015 | Nigersaurus taqueti Ibiricu et al. p. 434 |
| 2018 | Nigersaurus taqueti Hassler et al. p. 2 |
| 2020 | Nigersaurus taqueti Sakagami and Kawabe p. 12 |
| 2021 | Nigersaurus taqueti Paulina-Carabajal and Calvo p. 2 |
| 2023 | Nigersaurus taqueti Poropat et al. p. 29 |
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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
| Reference | Diagnosis | |
|---|---|---|
| P. C. Sereno et al. 1999 | Rebbachisaurid 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 2005 | Rebbachisaurid 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. |
Measurements
No measurements are available
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| Source: infrao = infraorder | |||||
| Reference: Marsh 1875 | |||||
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | Niger (Agadez) | Rebbachisaurus sp. (37200) | |
| Aptian - Albian | Niger (Agadez) | Nigersaurus taqueti (type locality: 59640) | |
| Albian | Niger (Agadez) | Titanosauridae indet. (28569) |