PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Ornithomimosauria (ornithomimosaur)

Reptilia

Taxonomy

Ornithomimosauria was named by Barsbold (1976).

It was reranked as the unranked clade Ornithomimosauria by Osmolska (1990), Currie (1997), Osmólska (1997), Hutchinson and Padian (1997), McFeeters et al. (2016), Sereno (2017) and Serrano-Brañas et al. (2020).

It was assigned to Theropoda by Barsbold (1976), Barsbold (1977), Barsbold (1983) and Russell (1984); to Coelurosauria by Chatterjee (1993); to Bullatosauria by Holtz (1994), Osmólska (1997) and Hutchinson and Padian (1997); to Arctometatarsalia by Holtz (1995), Holtz (1998) and Senter et al. (2004); to Maniraptoriformes by Currie (1997), Sereno (1998), Sereno (1999), Holtz (2000), Maryanska et al. (2002) and Makovicky et al. (2004); to Coelurosauria by Benton (1990), Osmolska (1990), Rauhut (2003) and Sereno (2017); and to Theropoda by McFeeters et al. (2016) and Serrano-Brañas et al. (2020).

Subtaxa

Afromimus, Arkansaurus, Aviatyrannis, Beishanlong, Coelosaurus, Deinocheiridae, Garudimimidae, Harpymimidae, Hexing, Kinnareemimus, Nqwebasauridae, Nqwebasaurus, Ornithomimidae, Ornithomimoidea, Pelecanimimidae, Pelecanimimus, Shenzhousaurus, Thecocoelurus, Valdoraptor

Synonyms

Coelosaurus was named by Leidy (1865).

It was synonymized subjectively with Struthiomimus by Baird and Horner (1977); it was considered a nomen dubium by Russell (1972); it was considered a nomen dubium by Makovicky et al. (2004) and Weishampel (2006).

It was assigned to Sauria by Leidy (1865); to Dinosauria by Cope (1869); to Goniopoda by Cope (1870); to Theropoda by Quenstedt (1882); to Megalosauridae by Nopcsa (1901); to Compsognathidae by Huene (1909); to Dryptosauridae by Marsh (1895), Marsh (1896) and Huene (1927); to Ornithomiminae by Nopcsa (1928); to Coelurosauria by Kuhn (1939); to Coeluridae by Romer (1956), Tatarinov (1964), Romer (1966) and Steel (1970); to Megalosauridae by Sauvage (1882), Marsh (1882), Vetter (1884), Dollo (1884), Marsh (1884), Marsh (1884), Marsh (1885), Zittel (1890), Hay (1902), von Zittel (1911) and Welles (1984); and to Ornithomimidae by Matthew and Brown (1922), Lull (1924), Hay (1930), Russell (1930), Rapp (1944) and Carroll (1988).
Coelosaurus antiquus was named by Leidy (1865). Its type specimen is ANSP 9222 and is a 3D body fossil. Its type locality is Big Brook (Mt. Laurel), which is in a Campanian/Maastrichtian marginal marine horizon in the Mount Laurel Formation of New Jersey.

It was recombined as Struthiomimus antiquus by Baird and Horner (1977); it was considered a nomen dubium by Russell (1972); it was considered a nomen dubium by Makovicky et al. (2004) and Weishampel (2006); it was recombined as Ornithomimus antiquus by Baird and Horner (1979), Baird (1986), Kranz (1989), Sullivan (1997), Sullivan and Lucas (2003), Parris et al. (2004), Sullivan et al. (2005) and Buffetaut et al. (2009).
Ornithomimus affinis was named by Gilmore (1920). Its type specimen is USNM 5704, 5684, 5453, 6108, 5703, 8456, 6107, 5652 and is a 3D body fossil. Its type locality is Coffin's Engine Bank, Swampoodle, which is in an Aptian mire/swamp claystone in the Arundel Clay Formation of Maryland.

It was recombined as Coelosaurus affinis by Matthew and Brown (1922), Huene (1923), Hay (1930), Kuhn (1939) and Weems and Bachman (2015); it was recombined as Archaeornithomimus affinis by Russell (1972) and Kranz (1989); it was considered a nomen dubium by Smith and Galton (1990), Makovicky et al. (2004) and Weishampel (2006).
Thecocoelurus was named by Huene (1923). Its type is Thecospondylus daviesi.

It was synonymized subjectively with Thecospondylus by Blows (1998); it was considered a nomen dubium by Naish et al. (2001) and Naish (2002); it was considered a nomen dubium by Osmólska et al. (2004); it was considered a nomen dubium by Naish and Martill (2007) and Allain et al. (2014).

It was assigned to Compsognathinae by Nopcsa (1928); to Coelurosauria by Kuhn (1939); to Coeluridae by Huene (1923), Huene (1926), Huene (1926), Swinton (1936), Romer (1956), Tatarinov (1964), Romer (1966) and Steel (1970); to Oviraptorosauria by Ruiz-Omeñaca and Canudo (2003); and to Therizinosauroidea by Kirkland et al. (2004).
Megalosaurus oweni was named by Lydekker (1889). Its type specimen is BMNH R2559, a set of limb elements, and it is a 3D body fossil. Its type locality is Cuckfield (general) [BMNH], which is in a Valanginian/Hauterivian terrestrial horizon in the Tunbridge Wells Sand Formation of the United Kingdom. It is the type species of Valdoraptor.

It was recombined as Streptospondylus oweni by Seeley (1893); it was recombined as Altispinax oweni by Huene (1923), Huene (1926) and Kuhn (1939); it was recombined as Valdoraptor oweni by Olshevsky (1991), Olshevsky (1992), Holtz et al. (2004), Naish and Martill (2007) and Carrano et al. (2012); it was considered a nomen dubium by Swinton (1970), Blows (1998), Naish et al. (2001) and Allain et al. (2014).
Thecospondylus daviesi was named by Seeley (1888). Its type specimen is BMNH R181, a set of vertebrae, and it is a 3D body fossil. Its type locality is Isle of Wight (general), which is in a Barremian/Aptian terrestrial horizon in the United Kingdom. It is the type species of Thecocoelurus.

It was recombined as Coelurus daviesi by Lydekker (1888), Newton (1889), Lydekker (1889), Woodward and Sherborn (1890), Lydekker (1891), Van Den Broeck (1900) and Nopcsa (1901); it was recombined as Thecocoelurus daviesi by Huene (1923), Huene (1923), Huene (1926), Swinton (1936), Kuhn (1939), Steel (1970), Blows (1983), Hutt et al. (1996) and Ruiz-Omeñaca and Canudo (2003); it was considered a nomen dubium by Blows (1998), Naish et al. (2001), Naish (2002), Osmólska et al. (2004), Naish and Martill (2007) and Allain et al. (2014).
Dryosaurus grandis was named by Lull (1911). Its type specimen is USNM 5453 and is a 3D body fossil. Its type locality is Coffin's Engine Bank, Swampoodle, which is in an Aptian mire/swamp claystone in the Arundel Clay Formation of Maryland.

It was replaced with Ornithomimus affinis by Gilmore (1921); it was synonymized subjectively with Archaeornithomimus affinis by Kranz (1989).
Valdoraptor was named by Olshevsky (1991). Its type is Megalosaurus oweni.

It was considered a nomen dubium by Naish et al. (2001); it was considered a nomen dubium by Allain et al. (2014).

It was assigned to Allosauridae by Olshevsky (1992); to Allosauroidea by Naish and Martill (2007); and to Avetheropoda by Holtz et al. (2004) and Carrano et al. (2012).

Synonymy list

Year	Name and author
1865	Coelosaurus antiquus Leidy
1865	Coelosaurus Leidy p. 100 figs. pl. 3, fig. 3
1865	Coelosaurus antiquus Leidy p. 119
1869	Coelosaurus Cope p. 737
1869	Coelosaurus antiquus Cope p. 737
1870	Coelosaurus Cope p. 119
1870	Coelosaurus antiquus Cope p. 119
1875	Coelosaurus antiquus Cope p. 249
1882	Coelosaurus Marsh
1882	Coelosaurus Quenstedt p. 189
1882	Coelosaurus Sauvage p. 35
1884	Coelosaurus Dollo p. 298
1884	Coelosaurus Marsh p. 69
1884	Coelosaurus Vetter p. 363
1885	Coelosaurus Marsh p. 764
1888	Coelurus daviesi Lydekker p. 156
1888	Thecospondylus daviesi Seeley pp. 83-84 figs. 1-5
1889	Coelurus daviesi Lydekker p. 120
1889	Megalosaurus oweni Lydekker p. 325
1889	Coelurus daviesi Newton p. 260
1890	Coelurus daviesi Woodward and Sherborn p. 222
1890	Megalosaurus oweni Woodward and Sherborn p. 250
1890	Coelosaurus Zittel p. 727
1890	Coelosaurus antiquus Zittel p. 727
1891	Coelurus daviesi Lydekker p. 43
1893	Streptospondylus oweni Seeley p. 229
1895	Coelosaurus Marsh
1896	Coelosaurus Marsh p. 239
1900	Coelurus daviesi Van Den Broeck p. 83
1900	Megalosaurus oweni Van Den Broeck p. 84
1901	Coelosaurus Nopcsa p. 199
1901	Coelosaurus antiquus Nopcsa p. 199
1901	Megalosaurus oweni Nopcsa p. 200
1901	Coelurus daviesi Nopcsa p. 202
1902	Coelosaurus Hay p. 489
1902	Coelosaurus antiquus Hay p. 489
1902	Megalosaurus oweni Sauvage p. 20
1906	Megalosaurus oweni Sauvage p. 497
1909	Coelosaurus Huene p. 16
1911	Dryosaurus grandis Lull p. 176
1911	Coelosaurus von Zittel p. 282
1914	Megalosaurus oweni Sauvage p. 255
1920	Ornithomimus affinis Gilmore pp. 137-142 figs. 71-77
1921	Ornithomimus affinis Gilmore p. 586
1922	Coelosaurus Matthew and Brown pp. 373-374
1922	Coelosaurus antiquus Matthew and Brown pp. 373-374
1922	Coelosaurus affinis Matthew and Brown p. 377
1923	Thecocoelurus daviesi Huene
1923	Altispinax oweni Huene p. 453
1923	Thecocoelurus Huene p. 455
1923	Thecocoelurus daviesi Huene p. 455
1923	Coelosaurus affinis Huene p. 457 fig. 3
1924	Coelosaurus Lull p. 232
1926	Thecospondylus daviesi Huene p. 85
1926	Thecocoelurus Huene p. 86
1926	Altispinax oweni Huene p. 93
1926	Thecocoelurus daviesi Huene pp. 485-486
1926	Thecocoelurus Huene p. 486
1927	Coelosaurus Huene p. 264
1927	Coelosaurus antiquus Huene p. 264
1928	Coelosaurus Nopcsa p. 183
1928	Thecocoelurus Nopcsa p. 183
1930	Coelosaurus Hay p. 181
1930	Coelosaurus affinis Hay p. 181
1930	Coelosaurus antiquus Hay p. 181
1930	Coelosaurus Russell p. 136
1930	Coelosaurus antiquus Russell p. 136
1936	Thecocoelurus Swinton p. 207
1936	Thecocoelurus daviesi Swinton p. 207
1936	Megalosaurus oweni Swinton p. 208
1939	Thecocoelurus Kuhn p. 45
1939	Thecocoelurus daviesi Kuhn p. 45
1939	Coelosaurus Kuhn p. 48
1939	Coelosaurus affinis Kuhn p. 48
1939	Coelosaurus antiquus Kuhn p. 48
1939	Altispinax oweni Kuhn p. 74
1944	Coelosaurus Rapp p. 287
1944	Coelosaurus antiquus Rapp p. 287
1956	Coelosaurus Romer p. 612
1956	Thecocoelurus Romer p. 612
1964	Coelosaurus Tatarinov p. 533
1964	Thecocoelurus Tatarinov p. 533
1966	Coelosaurus Romer p. 369
1966	Thecocoelurus Romer p. 369
1970	Coelosaurus Steel p. 15
1970	Coelosaurus antiquus Steel p. 15
1970	Thecocoelurus Steel p. 17
1970	Thecocoelurus daviesi Steel p. 17
1970	Ornithomimus affinis Steel p. 19
1970	Megalosaurus oweni Steel p. 35
1972	Archaeornithomimus affinis Russell p. 379
1976	Ornithomimosauria Barsbold p. 74
1977	Struthiomimus antiquus Baird and Horner p. 50
1977	Ornithomimosauria Barsbold p. 50
1979	Ornithomimus antiquus Baird and Horner p. 10
1980	Coelosaurus antiquus Molnar p. 105
1983	Ornithomimosauria Barsbold p. 97
1983	Thecocoelurus daviesi Blows p. 308
1984	Ornithomimosauria Russell p. 28
1984	Coelosaurus antiquus Welles p. 162
1984	Coelosaurus Welles p. 177
1986	Ornithomimus antiquus Baird p. 78
1988	Coelosaurus Carroll
1988	Ornithomimus affinis Paul p. 387
1989	Archaeornithomimus affinis Kranz p. 15
1989	Ornithomimus antiquus Kranz p. 19
1990	Ornithomimosauria Benton p. 19
1990	Ornithomimosauria Osmolska p. 149
1991	Valdoraptor Olshevsky p. 23
1991	Valdoraptor oweni Olshevsky p. 23
1992	Valdoraptor Olshevsky p. 134
1992	Valdoraptor oweni Olshevsky p. 134
1993	Ornithomimosauria Chatterjee p. 283
1994	Ornithomimosauria Holtz
1995	Ornithomimosauria Holtz, Jr. p. 35A
1996	Thecocoelurus daviesi Hutt et al. p. 636
1996	Coelosaurus antiquus Molnar et al. p. 672
1997	Ornithomimosauria Currie p. 733
1997	Ornithomimosauria Hutchinson and Padian p. 130
1997	Ornithomimosauria Osmólska p. 499
1997	Ornithomimus antiquus Sullivan p. 251
1998	Ornithomimosauria Holtz, Jr. p. 40
1998	Ornithomimosauria Sereno p. 65
1999	Ornithomimosauria Sereno p. 2139 fig. 2
2000	Ornithomimosauria Holtz, Jr. p. 29 fig. 5
2002	Ornithomimosauria Maryanska et al. p. 102 fig. 1
2003	Ornithomimosauria Rauhut p. 149
2003	Thecocoelurus Ruiz-Omeñaca and Canudo p. 293
2003	Thecocoelurus daviesi Ruiz-Omeñaca and Canudo p. 297
2003	Ornithomimus antiquus Sullivan and Lucas p. 102A
2004	Valdoraptor Holtz, Jr. et al. p. 77
2004	Valdoraptor oweni Holtz, Jr. et al. p. 77
2004	Thecocoelurus Kirkland et al. p. 78A
2004	Ornithomimosauria Makovicky et al. p. 138
2004	Ornithomimus antiquus Parris et al. p. 65
2004	Ornithomimosauria Senter et al. p. 2 fig. 2
2005	Ornithomimus antiquus Sullivan et al. p. 398
2007	Valdoraptor Naish and Martill pp. 502-503
2007	Valdoraptor oweni Naish and Martill pp. 502-503
2009	Ornithomimus antiquus Buffetaut et al. p. 233
2009	Ornithomimus affinis Buffetaut et al. p. 236
2012	Valdoraptor Carrano et al. p. 256
2012	Valdoraptor oweni Carrano et al. p. 256
2015	Coelosaurus affinis Weems and Bachman p. 209
2016	Ornithomimosauria McFeeters et al.
2016	Ornithomimus affinis Serrano-Brañas et al. p. 57
2017	Ornithomimosauria Sereno
2020	Ornithomimosauria Serrano-Brañas et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Theropoda	()
—	Neotheropoda
—	Averostra	Paul 2002
—	Tetanurae
—	Coelurosauria	()
—	Maniraptoriformes
—	Arctometatarsalia
infraorder	Ornithomimosauria
infraorder	Ornithomimosauria

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.

Infraor. †Ornithomimosauria Barsbold 1976 [ornithomimosaur]

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G. †Afromimus Sereno 2017

†Afromimus tenerensis Sereno 2017

G. †Arkansaurus Hunt and Quinn 2018

†Arkansaurus fridayi Hunt and Quinn 2018

G. †Aviatyrannis Rauhut 2003

†Aviatyrannis jurassica Rauhut 2003

G. †Beishanlong Makovicky et al. 2010

†Beishanlong grandis Makovicky et al. 2010

Fm. †Deinocheiridae Kielan-Jaworowska 1969

G. †Deinocheirus Kielan-Jaworowska 1969

†Deinocheirus mirificus Kielan-Jaworowska 1969

G. †Garudimimus Barsbold 1981 [Garudi mimic]

†Garudimimus brevipes Barsbold 1981

G. †Harpymimus Barsbold and Perle 1984

†Harpymimus okladnikovi Barsbold and Perle 1984

G. †Paraxenisaurus Serrano-Brañas et al. 2020

†Paraxenisaurus normalensis Serrano-Brañas et al. 2020

G. †Tyrannomimus Hattori et al. 2023

†Tyrannomimus fukuiensis Hattori et al. 2023

G. †Hexing Jin et al. 2012

†Hexing qingyi Jin et al. 2012

G. †Kinnareemimus Buffetaut et al. 2009

†Kinnareemimus khonkaenensis Buffetaut et al. 2009

Fm. †Nqwebasauridae Alifanov and Saveliev 2015

G. †Lepidocheirosaurus Alifanov and Saveliev 2015

†Lepidocheirosaurus natatilis Alifanov and Saveliev 2015

G. †Nqwebasaurus de Klerk et al. 2000

†Nqwebasaurus thwazi de Klerk et al. 2000

Fm. †Ornithomimidae Marsh 1890 [ornithomimid]

G. †Aepyornithomimus Chinzorig et al. 2017

†Aepyornithomimus tugrikinensis Chinzorig et al. 2017

G. †Anserimimus Barsbold 1988

†Anserimimus planinychus Barsbold 1988

G. †Archaeornithomimus Russell 1972

†Archaeornithomimus asiaticus Gilmore 1933

†Archaeornithomimus bissektensis Nessov 1995

G. †Dromiceiomimus Russell 1972

†Dromiceiomimus brevitertius Parks 1926

G. †Gallimimus Osmólska et al. 1972

†Gallimimus bullatus Osmólska et al. 1972

G. †Ornithomimidorum Huene 1926

G. †Ornithomimus Marsh 1890

†Ornithomimus edmontonicus Sternberg 1933

Invalid names: Struthiomimus currellii Parks 1933 [synonym], Struthiomimus ingens Parks 1933 [synonym], Struthiomimus samueli Parks 1928 [synonym]

†Ornithomimus minutus Marsh 1892

†Ornithomimus tenuis Marsh 1890

†Ornithomimus velox Marsh 1890

Invalid names: Ornithomimus sedens Marsh 1892 [nomen dubium]

G. †Qiupalong Xu et al. 2011

†Qiupalong henanensis Xu et al. 2011

G. †Rativates McFeeters et al. 2016

†Rativates evadens McFeeters et al. 2016

G. †Sinornithomimus Kobayashi and Lü 2003

†Sinornithomimus dongi Kobayashi and Lü 2003

G. †Struthiomimus Osborn 1916

†Struthiomimus altus Lambe 1902

G. †Tototlmimus Serrano-Brañas et al. 2016

†Tototlmimus packardensis Serrano-Brañas et al. 2016

Invalid names: Deinocheirinae Paul 1988 [empty], Garudimiminae Paul 1988 [empty], Ornithomiminae Nopcsa 1923 [empty]

G. †Pelecanimimus Pérez-Moreno et al. 1994

†Pelecanimimus polyodon Pérez-Moreno et al. 1994

G. †Shenzhousaurus Ji et al. 2003

†Shenzhousaurus orientalis Ji et al. 2003

Invalid names: Coelosaurus Leidy 1865 [nomen dubium], Garudimimidae Barsbold 1981 [empty], Harpymimidae Barsbold and Perle 1984 [empty], Ornithomimoidea Sereno 1999 [empty], Pelecanimimidae Alifanov 2012 [empty], Thecocoelurus Huene 1923 [nomen dubium], Valdoraptor Olshevsky 1991 [nomen dubium]

Diagnosis

Reference	Diagnosis
H. Osmólska 1997	Diagnostic features include th enlarged beak-like premaxilla; the secondary palate formed by the premaxilla and maxilla; reduced lower temporal fenestra; lightly constructed humerus with reduced deltopectoral crest; long hand with subequal metacarpals and digits; less trenchant unguals; metatarsus elongated, about 80ﬁ tibial length; and short, stout pedal digits (Gauthier, 1986).

Measurements

part	N	mean
tibia circumference	1	98.0

Composition:

hydroxyapatiteinfrao

Entire body:

yesinfrao

Adult length:

1.0 to < 10infrao

Adult width:

0.1 to < 1.0infrao

Adult height:

1.0 to < 10infrao

Maximum body mass:

10000 kgg

Minimum body mass:

10 kgg

Thickness:

thickinfrao

Architecture:

compact or denseinfrao

Ontogeny:

accretion, modification of partsinfrao

Grouping:

gregariousinfrao

Environment:

terrestrialinfrao

Locomotion:

actively mobileinfrao

Life habit:

ground dwellinginfrao

Diet:

herbivoreinfrao

Diet 2:

omnivoreinfrao

Reproduction:

oviparousinfrao

Dispersal:

direct/internalinfrao

Dispersal 2:

mobileinfrao

Created:

2005-03-06 14:09:12

Modified:

2005-09-11 19:09:33

Source: g = genus, infrao = infraorder

References: Averianov and Yarkov 2004, Peczkis 1995

Age range: base of the Kimmeridgian to the top of the Late/Upper Maastrichtian or 157.30000 to 66.00000 Ma

Collections (297 total)

Time interval	Ma	Country or state	Original ID and collection number
Oldest occurrences
Late/Upper Bathonian - Late/Upper Jurassic	167.7 - 145.0	Russian Federation (Zabaykal'ye)	Lepidocheirosaurus natatilis (159014)
Kimmeridgian	157.3 - 152.1	Portugal (Leiria)	Stokesosaurus sp., Tyrannosauridae indet. (24563)
Tithonian	152.1 - 145.0	France (Nord-Pas-de-Calais)	Megalosaurus oweni (53967)
Berriasian	145.0 - 139.8	France (Poitou-Charentes)	Ornithomimosauria indet. (142093)
Berriasian - Valanginian	145.0 - 132.9	South Africa (Eastern Cape)	Nqwebasaurus thwazi (51903)
Early/Lower Cretaceous	145.0 - 100.5	Mongolia (Ovorkhangai)	Ornithomimidae indet. (79703)
Late/Upper Valanginian - Early/Lower Hauterivian	140.2 - 130.0	United Kingdom (England)	Hylaeosaurus sp. (73272)
Valanginian	139.8 - 132.9	Russian Federation (Buryat)	Ornithomimosauria indet., Coelurosauria indet. (58196)
Valanginian	139.8 - 132.9	USA (Utah)	Ornithomimidae indet. (27025)
Late/Upper Barremian	130.0 - 125.45	Spain (Castilla-La Mancha)	Pelecanimimus polyodon (28006)
Youngest occurrences
Time interval	Ma	Country or state	PBDB collection number
Late/Upper Maastrichtian	70.6 - 66.0	USA (Montana)	Ornithomimus sp. (142326)
Late/Upper Maastrichtian	70.6 - 66.0	USA (South Dakota)	Ornithomimidae indet. (45388 45390 224491) Ornithomimus sp. (48551 150895 224484)
Late/Upper Maastrichtian	70.6 - 66.0	Canada (Alberta)	Ornithomimidae indet. (194867) Ornithomimus sp. (227001) Struthiomimus sp. (227002)
Late/Upper Maastrichtian	70.6 - 66.0	USA (Colorado)	Ornithomimus velox (49000 49528 49550 49554)
Late/Upper Maastrichtian	70.6 - 66.0	Canada (Saskatchewan)	Ornithomimus sp. (45675)
Late/Upper Maastrichtian	70.6 - 66.0	USA (Wyoming)	Ornithomimus sedens (52871) Ornithomimus sp. (14585) Struthiomimus sp. (26760)
Late/Upper Maastrichtian	70.6 - 66.0	Russian Federation (Amur)	Ornithomimidae indet. (38134)
Late/Upper Maastrichtian	70.6 - 66.0	USA (North Dakota)	Ornithomimidae indet. (45099 45136 45381 45382 57919)
Late/Upper Maastrichtian	70.6 - 66.0	Bulgaria (Pleven)	Ornithomimosauria indet. (105085 105333)
Late/Upper Maastrichtian	70.6 - 66.0	China (Henan)	Qiupalong henanensis (84996)