After Clark, Norell & Rowe, 2002, Marya´nska, Osmólska & Wolsan, 2002, Lü et al., 2004, Lü, Currie, Xu, Zhang, Pu & Jia, 2013, and Lü, Yi, Zhong & Wei, 2013

<==o †Oviraptorosauria Barsbold, 1976b
   |?- †Omnivoropteryx sinousaorum Czerkas & Qiang Ji, 2002; L.Cret. EAs.
   |?- †Kol ghuva Turner, Nesbitt, & Norell, 2009 [problematic; could also be an alvarezsaurid]
   |-- †Incisivosaurus gauthieri Xu, Cheng, Wang & Chang, 2002 [=? Protarchaeopteryx robusta Ji & Ji, 1997] [Incisivosaurus guuthieri Lü et al., 2004 (lapsus calami)]
   `--+-- †Avimimus portentosus Kurzanov, 1981 [Avimimidae Kurzanov, 1981]
      `--+--o †Caudipterygidae Zhou & Wang, 2000
         |  |-- †Similicaudipteryx yixianensis He, Wang & Zhou, 2008
         |  `--o †Caudipteryx Ji, Currie, Norell & Ji, 1998 [feathered]
         |     |-- †C. dongi Zhou & Wang, 2000
         |     `-- †C. zoui Ji, Currie, Norell & Ji, 1998
         `--o †Oviraptoroidea Barsbold, 1976a sensu Marya´nska, Osmólska & Wolsan, 2002 [Caenagnathoidea Sternberg, R. M., 1940 sensu Lamanna et al, 2014]
            |--o †Caenagnathidae Sternberg, R. M., 1940 [incl. Elmisauridae Osmólska, 1981]
            |  |?- †Caenagnathasia martinsoni Currie, Godfrey & Nessov, 1995
            |  |?- †Ojoraptorsaurus boerei Sullivan, Jasinski & Van Tomme, 2011
            |  |?- †Epichirostenotes curriei Sullivan, Jasinski & Van Tomme, 2011
            |  |?- †Hagryphus giganteus Zanno & Sampson, 2005; U.Cret. WNAm.
            |  |?-o †Leptorhynchos Longrich, Barnes, Clark & Millar, 2013
            |  |  |-- †L. elegans (Parks, 1933) Longrich, Barnes, Clark & Millar, 2013 [Ornithomimus elegans Parks, 1933; Elmisaurus elegans (Parks, 1933); Caenagnathus sternbergi Cracraft, 1971; Chirostenotes elegans (Parks, 1933)]
            |  |  `-- †L. gaddisi Longrich, Barnes, Clark & Millar, 2013
            |  |?- †Microvenator celer Ostrom, 1970a
            |  `--o †Caenagnathinae Sternberg, R. M., 1940
            |     |?- †Anzu wyliei Lamanna, Sues, Schachner & Lyson, 2014; L.Cret. WNAm.
            |     |?- †Ricardoestesia gilmorei Currie, Rigby & Sloan, 1990
            |     |-- †Caenagnathus collinsi Sternberg, 1940 [=? Chirostenotes pergracilis Gilmore, 1924a]
            |     `--o †Chirostenotes Gilmore, 1924a [Elmisaurus Osmólska, 1981, Caenagnathus Sternberg, R. M., 1940, Macrophalangia Sternberg, 1932a]
            |        |-- †C. pergracilis Gilmore, 1924a [Macrophalangia canadiensis Sternberg, 1932a]
            |        `-- †C. rarus (Osmólska, 1981) [Elmisaurus rarus Osmólska, 1981]
            `--+-- †Gigantoraptor erlianensis Xu, Q. Tan, Wang, Zhao & L. Tan, 2007
               `--+-- †Nankangia jiangxiensis Lü, Yi, Zhong & Wei, 2013
                  `--o †Oviraptoridae Barsbold, 1976a sensu Lü et al., 2004
                     |?- †Banji long Xu & Han, 2010
                     |?- †Jiangxisaurus ganzhouensis Wei, Pu, Xu, Liu & Lü, 2013
                     |?- †Luoyanggia liudianensis Lü, Xu, Jiang, Jia, Li, Yuan, Zhang & Ji, 2009
                     |?- †Shixinggia oblita Lü & Zhang, 2005
                     |?- †Wulatelong gobiensis Xu, Tan, Wang, Sullivan, Hone, Han, Ma, Tan & Xiao, 2013
                     |-- †Yulong mini Lü, Currie, Xu, Zhang, Pu & Jia, 2013
                     `--+?- †Ganzhousaurus nankangensis Wang et al., 2013
                        |?- †Oviratoridae gen. et sp. indet. [GIN 100/42] [Oviraptor philoceratops Osborn; Barsbold et al., 1990]
                        |-- †Oviraptor philoceratops Osborn, 1924a
                        |--+-- †Rinchenia mongoliensis (Barsbold, 1986) Barsbold, 1997 ["Oviraptor" mongoliensis Barsbold, 1986]
                        |  `--o †Citipati Clark, Norell & Barsbold, 2001
                        |     |-- †C. osmolskae Clark, Norell & Barsbold, 2001
                        |     `-- †C. sp.
                        `--o †“Ingeniinae” Barsbold, 1981 [type genus preoccupied]
                           |?- †Nomingia gobiensis Barsbold, Osmólska, Watabe, Currie & Tsogtbataar, 2000
                           |-- †Khaan mckennai Clark, Norell & Barsbold, 2001
                           `--+-- †Conchoraptor gracilis Barsbold, 1986 [incl. Ingenia yanshini Barsbold, 1981 in partim]
                              `--+-- †Machairasaurus leptonychus Longrich, Currie & Dong, 2010
                                 `--+-- “Ingeniayanshini Barsbold, 1981 [non Ingenia Gerlach, 1957 (a marine nematode worm), Ajancingenia Easter, 2013 (Ethical violation considered, see Mortimer, 2013]
                                    `--+-- †Heyuannia huangi Lü, 2003
                                       `-- †Nemegtomaia barsboldi (Lü, Tomida, Azuma, Dong & Lee, 2004) Lü, Tomida, Azuma, Dong & Lee, 2005 [pro Nemegtia barsboldi Lü, Tomida, Azuma, Dong & Lee, 2004 (preoccupied by an ostracod)]

After Lamanna, Sues, Schachner & Lyson, 2014 (fig. 6B)

<==o †Oviraptorosauria
   |-- †Incisivosaurus
   `--+--o †Caudipterygidae
      |  |-- †Similicaudipteryx
      |  `-- †Caudipteryx
      `--+-- †Avimimus
         `--o †Caenagnathoidea
            |--o †Caenagnathidae
            |  |-- †Microvenator
            |  `--+-- †Gigantoraptor
            |     `--+-- †Caenagnathasia
            |        `--+-- “Alberta dentary morph 3”
            |           |-- †Leptorhynchos
            |           `--+-- †“Caenagnathussternbergi
            |              `--+-- †Anzu
            |                 `-- †Chirostenotes
            `--o †Oviraptoridae
               |--+-- †Nankangia
               |  `--+-- †Yulong
               |     `-- †Nomingia
               `--+-- †Oviraptor
                  `--+--+-- †Rinchenia
                     |  `--+-- “Zamyn Khondt oviraptorid”
                     |     `-- †Citipati 
                     `--+--+-- †Wulatelong
                        |  `-- †Banji
                        `--+-- †Shixinggia
                           `--+-- †Jiangxisaurus
                              |-- †Ganzhousaurus
                              |-- †Nemegtomaia
                              |-- †Machairasaurus
                              |-- †Conchoraptor
                              |-- †Khaan
                              `--+-- †Ingenia
                                 `-- †Heyuannia

Reference(s):

  • Lamanna, M. C., Sues, H.-D., Schachner, E. R. & Lyson, T. R., 2014: A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America.
    –Plos One: Vol. 9, #3, pp. e92022 (1-16) [doi: 10.1371/journal.pone.0092022]

After Lü, Currie, Xu, Zhang, Pu & Jia, 2013, and Lü, Yi, Zhong & Wei, 2013

<==o †Oviraptorosauria
   |-- †Incisivosaurus
   `--+-- †Caudipteryx
      `--+-- †Avimimus
         `--o †Oviraptoroidea
            |--o †Caenagnathidae
            |  `-- †Chirostenotes
            `--o †Oviraptoridae sensu Lü, Currie, Xu, Zhang, Pu & Jia, 2013
               |-- †Gigantoraptor
               `--+-- †Nankangia
                  `--o †Oviraptoridae sensu Lü, Yi, Zhong & Wei, 2013
                     |-- †Yulong
                     `--+-- †Oviraptor
                        |--+-- †Rinchenia
                        |  `-- †Citipati
                        `--+-- †Khaan
                           `--+-- †Conchoraptor
                              `--+-- †Machairasaurus
                                 `--+-- †Ingenia
                                    `--+-- †Heyuannia
                                       `-- †Nemegtomaia

Reference(s):

  • Lü, J., Currie, P., Xu, L., Zhang, X., Pu, H. & Jia, S., 2013: Chicken-sized oviraptorid dinosaurs from central China and their ontogenetic implications.
    –Naturwissenschaften: Vol. 100, #2, pp. 165-175 [doi: 10.1007/s00114-012-1007-0]
  • Lü, J., Yi, L., Zhong, H. & Wei, X., 2013: A New Oviraptorosaur (Dinosauria: Oviraptorosauria) from the Late Cretaceous of Southern China and Its Paleoecological Implications.
    –Plos One: Vol. 8, #11, pp. e80557 (1-14) [doi: 10.1371/journal.pone.0080557]

After Longrich, Barnes, Clark & Millar, 2013

<==o †Oviraptorosauria
   |-- †Incisivosaurus
   `--+-- †Caudipteryx
      `--+--o †Avimimidae
         |  `-- †Avimimus
         `--o †Oviraptoroidea
            |--o †Caenagnathidae
            |  |-- †Microvenator
            |  `--+-- †Gigantoraptor
            |     `--+-- †Caenagnathasia
            |        |-- †Elmisaurus
            |        `--+-- †Leptorhynchos
            |           |-- †Hagryphus
            |           `--o †Caenagnathinae
            |              |-- †Chirostenotes
            |              `-- †Caenagnathus
            `--o †Oviraptoridae
               |--o †Oviraptorinae
               |  |-- †Oviraptor
               |  `--+-- †Rinchenia
               |     `--+-- Zamyn Khondt oviraptorid
               |        `-- †Citipati
               `--o †Ingeniinae
                  |-- †Khaan
                  `--+-- †Conchoraptor
                     `--+-- †Nemegtomaia
                        |-- †Heyuannia
                        `-- †Ingenia 

Reference(s):

  • Longrich, N. R., Barnes, K., Clark, S. & Millar, L., 2013: Caenagnathidae from the Upper Campanian Aguja Formation of West Texas, and a Revision of the Caenagnathinae.
    –Bulletin of the Peabody Museum of Natural History: Vol. 54, #1, pp. 23-49 [doi: 10.3374/014.054.0102]

After Longrich, Currie & Dong, 2010

<==o †Oviraptorosauria
   |-- †Caudipteryx
   `--+-- †Avimimus
      `--o †Oviraptoroidea
         |--o †Caenagnathidae
         |  |-- †Gigantoraptor
         |  `-- †Chirostenotes
         `--o †Oviraptoridae
            |--o †Oviraptorinae
            |  |-- †Oviraptor
            |  `--+-- †Rinchenia
            |     `--+-- Zamyn Khondt oviraptorid
            |        `-- †Citipati
            `--o †Ingeniinae
               |-- †Khaan
               `--+-- †Conchoraptor
                  `--+-- †Nemegtomaia
                     |-- †Machairasaurus
                     |-- †Heyuannia
                     `-- †Ingenia

Reference(s):

  • Longrich, N. R., Currie, P. J. & Zhi-Ming, D., 2010: A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia.
    –Palaeontology: Vol. 53, #5, pp. 945-960 [doi: 10.1111/j.1475-4983.2010.00968.x]

After Lü, Tomida, Azuma, Dong & Lee, 2004

<==o †Oviraptorosauria
   |-- †Incisivosaurus
   `--+-- †Caudipteryx
      `--+-- †Microvenator
         `--+-- †Avimimus
            `--o †Oviraptoroidea
               |-- †Chirostenotes
               `--o †Oviraptoridae
                  |-- †Khaan
                  `--+--+-- GIN 100/42
                     |  `-- †Oviraptor
                     `--+--+-- †Heyuannia
                        |  `--+-- †Negmetia barsboldi [= Nemegtomaia barsboldi]
                        |     `-- †Citipati
                        `--+-- †Conchoraptor
                           `--+-- †Ingenia
                              `--+-- †Nomingia
                                 `-- †“Oviraptor” mongoliensis [= Rinchenia]

Reference(s):

  • Lü, J.-C., Tomida, Y., Azuma, Y., Dong, Z.-m. & Lee, Y.-N., 2004: New oviraptorid dinosaur (Dinosauria: Oviraptorosauria) from the Nemegt Formation of southwestern Mongolia.
    –Bull. Natn. Sci. Mus. Tokyo, Ser. C.: Vol. 30, pp. 95-130

Reference(s):