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Heyuannia yanshini
Taxonomy
Ingenia yanshini was named by Barsbold (1981). Its type specimen is PST GIN AN MNP 100/30, a partial skeleton, and it is a 3D body fossil. Its type locality is Khermeen Tsav, Red Beds (PIN coll. 3142) [SMPE], which is in a Campanian/Campanian terrestrial horizon in the Baruungoyot Formation of Mongolia. It was considered monophyletic by Currie (2000).
It was recombined as Oviraptor yanshini by Paul (1988); it was recombined as Ajancingenia yanshini by Easter (2013), Wang et al. (2016) and Norell et al. (2018); it was recombined as Heyuannia yanshini by Funston et al. (2018), Yun (2019), Lee et al. (2019), Funston (2020) and Funston et al. (2021).
It was recombined as Oviraptor yanshini by Paul (1988); it was recombined as Ajancingenia yanshini by Easter (2013), Wang et al. (2016) and Norell et al. (2018); it was recombined as Heyuannia yanshini by Funston et al. (2018), Yun (2019), Lee et al. (2019), Funston (2020) and Funston et al. (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Ingenia yanshini Barsbold p. 35 |
| 1983 | Ingenia yanshini Barsbold p. 93 |
| 1988 | Oviraptor yanshini Paul p. 378 |
| 1992 | Ingenia yanshini Currie p. 246 |
| 1992 | Ingenia yanshini Le Loeuff et al. p. 338 |
| 1996 | Ingenia yanshini Osmólska p. 33 |
| 1997 | Ingenia yanshini Norell and Makovicky p. 3 |
| 1997 | Ingenia yanshini Osmólska p. 41 |
| 2000 | Ingenia yanshini Currie p. 438 |
| 2001 | Ingenia yanshinii Norell et al. p. 13 |
| 2002 | Ingenia yanshini Maryanska et al. p. 101 fig. 1 |
| 2003 | Ingenia yanshini Rauhut p. 40 |
| 2004 | Ingenia yanshini Lü et al. p. 109 fig. 8 |
| 2004 | Ingenia yanshini Osmólska et al. p. 167 |
| 2005 | Ingenia yanshini Lü and Zhang p. 417 |
| 2007 | Ingenia yanshini Juárez Valieri et al. p. 61 |
| 2007 | Ingenia yanshani Turner et al. p. 17 |
| 2010 | Ingenia yanshini Longrich et al. p. 953 fig. 7 |
| 2010 | Ingenia yanshini Xu and Han p. 12 |
| 2012 | Ingenia yanshini Fanti et al. p. 1 |
| 2013 | Ajancingenia yanshini Easter |
| 2014 | Ingenia yanshini Lamanna et al. p. 10 fig. 6 |
| 2015 | Ingenia yanshini Funston et al. p. 186 |
| 2016 | Ingenia yanshini Funston and Currie p. 10 |
| 2016 | Ajancingenia yanshini Wang et al. p. 8 |
| 2018 | Heyuannia yanshini Funston et al. p. 109–110 |
| 2018 | Ajancingenia yanshini Norell et al. p. 13 |
| 2019 | Heyuannia yanshini Lee et al. p. 2 |
| 2019 | Heyuannia yanshini Yun p. 295 |
| 2020 | Heyuannia yanshini Funston p. 136 fig. 20 |
| 2021 | Heyuannia yanshini Funston et al. p. 7 |
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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.
†Heyuannia yanshini Barsbold 1981
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. F. Funston et al. 2018 | Small oviraptorid oviraptorosaur diagnosed by the following features: low ridge on medial side of surangular*; angular contributing to retroarticular process; fused axis intercentrum; relatively large epipophyses on anterior cervical vertebrae; accessory foramen anteroventral to lateral pleurocoel of posterior cervical vertebrae; eight sacral vertebrae* (shared with Ne. barsboldi); 30 caudal vertebrae with hatchet- shaped transverse processes; chevrons with distal bulb*; unfused scapulocoracoid with unexpanded posterior blade, laterally-facing glenoid, and small biceps tubercle; humerus with large deltopectoral crest oc- cupying nearly half of humeral length and large ectepicondyle; ulna with large lateral distal process*; metacarpal I short (two-thirds length of metacarpus) and broad; metacarpal II and III subequal in length; ungual I-2 longer than metacarpal I*; fibula contacting calcaneum; metatarsal I spade-shaped; metatarsal II longer than metatarsal IV. |