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Gigantoraptor erlianensis
Taxonomy
Gigantoraptor erlianensis was named by Xu et al. (2007). Its type specimen is LH V0011, a partial skeleton, and it is a 3D body fossil. Its type locality is Saihangaobi, Sonid Zuoqi, which is in a Campanian/Campanian fluvial sandstone in the Iren Dabasu Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Gigantoraptor erlianensis Xu et al. p. 844 figs. 1-2 |
| 2010 | Gigantoraptor erlianensis Longrich et al. p. 953 |
| 2011 | Gigantoraptor erlianensis Sullivan et al. p. 421 |
| 2013 | Gigantoraptor erlianensis Fernandes de Azevedo et al. p. 138 |
| 2013 | Gigantoraptor erlianensis Longrich et al. p. 38 |
| 2014 | Gigantoraptor erlianensis Delcourt and Grillo p. 312 |
| 2014 | Gigantoraptor erlianensis Lamanna et al. p. 10 fig. 6 |
| 2015 | Gigantoraptor erlianensis Peecook and Sidor p. 8 |
| 2015 | Gigantoraptor erlianensis Sues and Averianov p. 50 |
| 2015 | Gigantoraptor erlianensis Tsuihiji et al. p. 60 |
| 2015 | Gigantoraptor erlianensis Yao et al. p. 291 |
| 2016 | Gigantoraptor erlianensis Funston and Currie p. 7 |
| 2016 | Gigantoraptor erlianensis Wang et al. p. 12–13 |
| 2017 | Gigantoraptor erlianensis Pu et al. p. 6 |
| 2018 | Gigantoraptor erlianensis Norell et al. p. 15 |
| 2019 | Gigantoraptor erlianensis Lee et al. p. 2 |
| 2019 | Gigantoraptor erlianensis Simon et al. p. 2 |
| 2020 | Gigantoraptor erlianensis Funston p. 106 |
| 2020 | Gigantoraptor erlianensis Jasinski et al. p. 5 |
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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.
†Gigantoraptor erlianensis Xu et al. 2007
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X. Xu et al. 2007 | An oviraptorosaur distinguishable from other species in the following features: a short mandible less than 45% of femoral length, a fossa on the lateral surface of the dentary close to the anterior end and a second fossa bounded dorsally by a lateral flange anterodorsal to the external mandibular fenestra, a long posteroventral process of the dentary extending to the level of the glenoid, a small, posteriorly tapered retroarticular process much deeper than wide, a tail composed of opisthocoelous anterior caudal vertebrae, amphicoelous middle ones and procoelous posterior ones, pleurocoels present on most caudal vertebrae, a pair of vertically arranged pneumatic openings present on the lateral surface of anterior caudal centra, a large pneumatic opening present on the ventral surface of anterior and middle caudal centra, anterior caudal vertebrae with tall neural spines (about three times as tall as wide) and robust and rod-like transverse processes located posteriorly, posteroventral margin of anterior caudal centra extending considerably ventrally, well-developed laminal system on the anterior caudal vertebrae (prespinal, postspinal, spinopostzygapophyseal, anterior centrodiapophyseal, posterior centrodiapophyseal, and prezygodiapophyseal laminae present on anterior caudal vertebrae), middle caudal vertebrae with vertical prezygapophyseal articular facets located proximal to the distal extremity of the process, a prominent convexity ventral to the acromion process on the lateral surface of the scapula, a laterally bowed humerus with a prominent, spherical humeral head and a strongly medially curved deltopectoral crest, a centrally constricted thick ridge running along the posterior margin of the proximal half of the humerus, a straight ulna with a sub-circular, concave proximal articular surface, a radius with a sub-spherical distal end, metacarpal I with a slightly convex medial margin of the proximal end and a medial condyle three times as high as and extending much more distally than the lateral one on the distal end, a metacarpal II with a prominent dorsolateral process on the proximal end and a longitudinal groove on the ventral margin of the proximal third of the shaft, manual unguals with a triangular set of lateral grooves, a laterally compressed pubis, a femur with a straight shaft, a constricted neck between the posteromedially oriented, spherical femoral head and the anteroposteriorly wide trochanteric crest which is much more robust and higher anteriorly than posteriorly, a distinct narrow groove medial to the trochanteric crest extending down the posterior margin of the femoral shaft, and a patellar groove present on the anterior surface of the distal end, a small calcaneum obscured from anterior view by the wide astragalar main body, a proximal projection on the lateral margin of distal tarsal IV, metatarsal III with ginglymoid distal end, and pedal unguals with two lateral grooves and a constricted proximal articular surface (Fig. 1b–g, i–t). |