Ajancingenia yanshini, Easter, 2013

Easter, Jesse, 2013, A new name for the oviraptorid dinosaur “ Ingenia ” yanshini (Barsbold, 1981; preoccupied by Gerlach, 1957), Zootaxa 3737 (2), pp. 184-190 : 185-186

publication ID	https://doi.org/10.11646/zootaxa.3737.2.6
publication LSID	lsid:zoobank.org:pub:1FBE5870-514F-403C-B006-5D54ECE3B3E3
persistent identifier	https://treatment.plazi.org/id/03B187C7-FFF8-FFB5-FE9E-6B6DFB9C2298
treatment provided by	Felipe (2021-08-25 23:43:50, last updated by Plazi 2023-11-04 20:16:15)
scientific name	Ajancingenia yanshini
status	gen. nov.

Treatment

Ajancingenia yanshini gen. nov. n. comb.

Synonyms: Ingenia yanshini Barsbold, 1981 preoccupied by Gerlach, 1957

Oviraptor yanshini Paul, 1988

Diagnosis: Distinguished from all other oviraptorids by the following characters: manual digit I subequal in length to digit II; manual ungual I more than 100% larger than ungual II (also in Nemegtomaia barsboldi ). Differs from Heyuannia huangi in more elongated manual phalanx I-1 (extending almost to distal end of II-1); ischium reduced relative to pelvis, lacking distinct tab-like obturator process; articular contributes to posteroventral margin of mandible in lateral view ( Barsbold, 1977; Barsbold et al. 1990; Wang et al. 2013). Differs from Nemegtomaia barsboldi in phalanx II-2 shorter than II-1; metacarpal III subequal in length to metacarpal II; well-developed brevis shelf subequal in length to preacteabular portion of ilium; dorsal margin of ilium slightly convex, gently sloping downward posteriorly.

Holotype: MPC-D100/30 ( Figure 1 View FIGURE 1 ), parietal, braincase, mandible, nine cervical vertebrae, fourteen dorsal ribs, sacrum, thirty caudal vertebrae, twelve chevrons, scapulacoracoids, furcula, sternum, humeri, radii, ulnae, semilunate carpal, metacarpal I, phalanx I-1, manual ungual I, metacarpal II, phalanx II-1, phalanx II-2, manual ungual II, metacarpal III, phalanx III-1, phalanx III-2, phalanx III-3, manual ungual III, ilia, pubes, ischia, femora, tibiae, fibulae, astragali, calcanea, metatarsal I, metatarsal II, phalanx II-1, phalanx II-2, pedal ungual II, metatarsal III, phalanx III-1, phalanx III-2, phalanx III-3, pedal ungual III, metatarsal IV, phalanx IV-1, phalanx IV-2, phalanx IV-3, phalanx IV-4, pedal ungual IV ( Barsbold, 1981).

Paratypes: MPC-D100/31, frontal fragment, parietals, mandible, postcrania including eight sacral vertebrae, radius, metacarpal I, phalanx I-1, manual ungual I, metacarpal II, phalanx II-1, phalanx II-2, manual ungual, metacarpal III, phalanx III-1, ilium, ischium, femur, tibia, fibula, phalanx III-3, phalanx IV-2, phalanx IV-3, phalanx IV-4, pedal ungual IV. MPC-D100/32, mandible, postcrania including cervical vertebrae, twenty seven caudal vertebrae, partial scapula, humerus, radius, ulna, semiulnate carpal, phalanx I-1, manual ungual I, metacarpal II, phalanx II-1, phalanx II-2, manual ungual II, metacarpal III, phalanx III-1, ilium, femur, tibia, metatarsus, phalanx III-3, phalanx IV-2, phalanx IV-3, phalanx IV-4, pedal ungual IV. MPC-D100/33, postcrania including sacrum, nineteen caudal vertebrae, scapula, sternal plates, furcula, humerus, radius, ulna, metacarpal I, phalanx I-1, manual ungual I, metacarpal II, phalanx II-1, phalanx II-2, manual ungual II, partial metacarpal III, ilium, pubis, ischium, femur, tibia, fibula, phalanx III-3, phalanx IV-2, phalanx IV-3, phalanx IV-4, pedal ungual IV ( Barsbold, 1981).

Referred Material: See Table 1.

Type Locality and Horizon: Khermin Tsav (43.3° N, 99.6° E; paleocoordinates 40.4° N, 88.8° E [ Gubin 1999; Fara 2001]), Barun Goyot Formation, Ömnögov, Mongolia (Campanian-Maastrichtian).

References

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Barsbold, R. (1981) [Toothless carnivorous dinosaurs of Mongolia]. Joint Soviet-Mongolian Paleontological Expedition Transactions, 15, 28 - 39. [in Russian]

Barsbold, R., Maryanska, T. & Osmolska, H. (1990) Oviraptorosauria. In: Weishampel, D. B., Dodson, P. & Osmolska, H. (Eds.), The Dinosauria 1 st ed. University of California Press, Berkeley, pp. 249 - 258.

Currie, P. J. (2002) Report on fieldwork in Mongolia, September 2001. In: Alberta Paleontological Society, sixth annual symposium, Fossils 2002 . Presented by Alberta Paleontological Society, in conjunction with Canadian Society of Petroleum Geologists, Paleontological Division and Department of Earth Sciences, Mount Royal College, pp. 8 - 12.

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Fara, E. (2001) Khermeen-Tsav locality (SMPE) (Cretaceous of Mongolia). Available from: http: // paleodb. org /? a = basicCollectionSearch & collection _ no = 11582 (Accessed 5 August 2013)

Gerlach, S. A. (1957) Die Nematodenfauna des Sandstrandes an der Kuste von Mittelbrasilien (Brasilianische Meeres- Nematoden IV). Mitteilungen aus dem Museum fur Naturkunde in Berlin. Zoologisches Museum und Institut fur Spezielle Zoologie (Berlin), 33, 411 - 459.

Gubin, Y. M. (1999) [Gobiatids (Anura) from the Upper Cretaceous locality Khermeen-Tsav (Gobi Desert, Mongolia)]. Paleontologicheskii Zhurnal, 1, 76 - 87. [in Russian]

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Maryanska, T. & Osmolska, H. (1997) The quadrate of oviraptorid dinosaurs. Acta Palaeontologica Polonica, 42, 361 - 371.

Maryanska, T., Osmolska, H. & Wolsan, M. (2002) Avialan status for Oviraptorosauria. Acta Palaeontologica Polonica, 47, 97 - 116.

Paul, G. S. (1988) Predatory Dinosaurs of the World: a Complete Illustrated Guide. Simon and Schuster Co., New York, 464 pp.

Qiu, L. & Huang, D. (2001) Dinosaur fossils from the Heyuan Basin in Guangdong Province, China. In: Deng, T. & Wang, Y. (Eds.), Proceedings of the Eighth Annual Meeting of the Chinese Society of Vertebrate Paleontology. China Ocean Press, Beijing, pp. 59 - 63.

Wang, S., Sun, C., Sullivan, C. & Xu, X. (2013) A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of southern China. Zootaxa, 3640 (2), 242 - 257. http: // dx. doi. org / 10.11646 / zootaxa. 3640.2.7