| Name | Year | Formation | Location | Notes | Images |
|---|
| Abdarainurus | 2020 | Alagteeg Formation (Late Cretaceous, Campanian) |  Mongolia | Inconsistent in phylogenetic placement. Could represent an unknown lineage of macronarians [1] |  |
| Abrosaurus | 1989 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) |  China | Had unusually large fenestrae |  |
| Achillobator | 1999 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Its robust build suggests it was not a cursorial animal [2] |  |
| Adasaurus | 1983 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Its sickle claw was markedly reduced compared to other dromaeosaurids |  |
| Aepyornithomimus | 2017 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | The first ornithomimosaur named from a dry desert environment |  |
| Agilisaurus | 1990 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | The holotype specimen was discovered during the construction of the museum where it is now housed |  |
| Albalophosaurus | 2009 | Kuwajima Formation (Early Cretaceous, Valanginian to Hauterivian?) |  Japan | Only known from fragments of a skull |  |
| Albinykus | 2011 | Javkhlant Formation (Late Cretaceous, Santonian) | Mongolia | Preserved in a sitting position not unlike that of modern birds |  |
| Alectrosaurus | 1933 | Bayan Shireh Formation?, Iren Dabasu Formation (Late Cretaceous, Cenomanian to Santonian?) | China
Mongolia? | Had long legs which may be an adaptation to pursuit predation [3] |  |
| Alioramus | 1976 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Possessed an elongated snout with a row of short crests |  |
| Almas | 2017 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Preserved alongside eggshells which may have come from a troodontid [4] |  |
| Alpkarakush | 2024 | Balabansai Formation (Middle Jurassic, Callovian) |  Kyrgyzstan | Distinguishable by its uniquely apparent, rugose orbital brow [5] |  |
| Altirhinus | 1998 | Khuren Dukh Formation (Early Cretaceous, Barremian to Albian) | Mongolia | Had a distinctively elevated nasal bone which supported a large nasal cavity |  |
| Alxasaurus | 1994 | Bayin-Gobi Formation (Early Cretaceous, Albian) | China | Most of the skeleton is known, which allowed researchers to connect therizinosaurs to other theropods |  |
| Ambopteryx | 2019 | Unnamed formation (Late Jurassic, Oxfordian) | China | Preserves stomach contents containing gastroliths and bone fragments, suggesting an omnivorous diet |  |
| Amtocephale | 2011 | Bayan Shireh Formation (Late Cretaceous, Turonian to Santonian) | Mongolia | One of the oldest known pachycephalosaurs |  |
| Amurosaurus | 1991 | Udurchukan Formation (Late Cretaceous, Maastrichtian) |  Russia | One specimen may have come from an individual with a limp [6] |  |
| Analong | 2020 | Chuanjie Formation (Middle Jurassic, Bajocian) | China | Originally described as a specimen of Chuanjiesaurus but it was assigned to a new genus due to several morphological differences |  |
| Anchiornis | 2009 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | Analysis of fossilized melanosomes suggests a mostly gray or black body, white and black patterns on its wings and a red head crest [7] |  |
| Anhuilong | 2020 | Hongqin Formation (Middle Jurassic, Aalenian to Callovian) | China | Closely related to Huangshanlong and Omeisaurus , all forming an exclusive clade of mamenchisaurids |  |
| Anomalipes | 2018 | Wangshi Group (Late Cretaceous, Campanian) | China | May have been closely related to Gigantoraptor despite its significantly smaller size [8] |  |
| Anserimimus | 1988 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had powerful forelimbs with uniquely straight, flattened claws |  |
| Aorun | 2013 | Shishugou Formation, (Late Jurassic, Oxfordian) | China | Potentially a basal member of the alvarezsaurian lineage [9] |  |
| Aralosaurus | 1968 | Bostobe Formation, (Late Cretaceous, Santonian to Campanian) |  Kazakhstan | Its crest has been interpreted as being arch-shaped as in kritosaurin hadrosaurids, but this cannot be confirmed |  |
| Archaeoceratops | 1997 | Xinminbao Group (Early Cretaceous, Aptian) | China | Had no horns and only the beginnings of a frill |  |
| Archaeocursor | 2025 | Ziliujing Formation (Early Jurassic, Sinemurian to Pliensbachian) | China | The oldest and most primitive ornithischian from Asia |  |
| Archaeornithoides | 1992 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Known from only a partial skull with scratches that may have been created by a small mammal [10] |  |
| Archaeornithomimus | 1972 | Iren Dabasu Formation (Late Cretaceous, Cenomanian) | China | Unlike other ornithomimosaurs, its feet were not arctometatarsalian |  |
| Arkharavia | 2010 | Udurchukan Formation (Late Cretaceous, Maastrichtian) | Russia | Described from a series of vertebrae, several of which were found to not belong to this taxon [11] |  |
| Arstanosaurus | 1982 | Bostobe Formation (Late Cretaceous, Santonian to Campanian) | Kazakhstan | Poorly known |  |
| Asiaceratops | 1989 | Khodzhakul Formation, Xinminbao Group? (Early Cretaceous? to Late Cretaceous, Aptian? to Cenomanian) | China?
 Uzbekistan | Potentially a leptoceratopsid [12] |  |
| Asiatosaurus | 1924 | Öösh Formation, Xinlong Formation (Early Cretaceous, Barremian to Albian) | China
Mongolia | Two species have been named but both are only known from extremely scant remains |  |
| Asiatyrannus | 2024 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Small for a tyrannosaurid although the holotype belongs to an immature individual [13] |  |
| Auroraceratops | 2005 | Xinminbao Group (Early Cretaceous, Albian) | China | Known from more than eighty specimens, including complete skeletons |  |
| Aurornis | 2013 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | If an avialan as originally described, it would be one of the oldest members of the group |  |
| Avimimus | 1981 | Barun Goyot Formation, Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | Bonebed remains indicate a gregarious lifestyle. It may have formed age-segregated herds for lekking or flocking purposes [14] |  |
| Bactrosaurus | 1933 | Iren Dabasu Formation, Majiacun Formation? (Late Cretaceous, Cenomanian to Santonian?) | China | Remains of at least six individuals are known, making up much of the skeleton |  |
| Bagaceratops | 1975 | Barun Goyot Formation, Bayan Mandahu Formation, Djadochta Formation? (Late Cretaceous, Campanian) | China
Mongolia | May have been a direct descendant of Protoceratops which it physically resembles [15] |  |
| Bagaraatan | 1996 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Recently found to be chimeric as some bones actually come from a caenagnathid [16] |  |
| Bainoceratops | 2003 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Its supposedly diagnostic features may fall within Protoceratops variation [17] |  |
| Baiyinosaurus | 2024 | Wangjiashan Formation (Middle Jurassic, Bathonian) | China | Exhibits anatomical characteristics transitional between basal thyreophorans and derived stegosaurs |  |
| Banji | 2010 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Vertical striations adorned the sides of its crest |  |
| Bannykus | 2018 | Bayin-Gobi Formation (Early Cretaceous, Barremian to Aptian) | China | Exhibited a transitional hand morphology for an alvarezsaur, having three fingers of roughly equal length with the first one being robust |  |
| Baotianmansaurus | 2009 | Gaogou Formation (Late Cretaceous, Cenomanian to Turonian) | China | Large but known from only a few bones |  |
| Barsboldia | 1981 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Possessed elongated neural spines particularly above the hips |  |
| Bashanosaurus | 2022 | Shaximiao Formation (Middle Jurassic, Bathonian) | China | Its skeleton combines traits of stegosaurs and more basal thyreophorans |  |
| Bashunosaurus | 2004 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Although described as a macronarian, this has yet to be rigorously tested [18] |  |
| Batyrosaurus | 2012 | Bostobe Formation (Late Cretaceous, Santonian to Campanian) | Kazakhstan | Remains originally identified as Arstanosaurus |  |
| Bayannurosaurus | 2018 | Bayin-Gobi Formation (Early Cretaceous, Aptian) | China | Known from a well-preserved, almost complete skeleton |  |
| Beg | 2020 | Ulaanoosh Formation (Early Cretaceous to Late Cretaceous, Albian to Cenomanian) | Mongolia | Its preserved skull has a rugose texture |  |
| Beibeilong | 2017 | Gaogou Formation (Late Cretaceous, Cenomanian to Coniacian) | China | Similar to but more basal than Gigantoraptor . [19] Known from only a single embryo still in its egg |  |
| Beipiaosaurus | 1999 | Yixian Formation (Early Cretaceous, Aptian) | China | Preserves evidence of downy feathers as well as a secondary coat of simpler "elongated broad filamentous feathers" or EBFFs [20] |  |
| Beishanlong | 2010 | Xinminbao Group (Early Cretaceous, Aptian) | China | Lacked the elongated claws of more derived ornithomimosaurs |  |
| Bellusaurus | 1990 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Known from a bone bed with the remains of seventeen juvenile specimens |  |
| Bienosaurus | 2001 | Lufeng Formation (Early Jurassic, Sinemurian) | China | Potentially synonymous with Tatisaurus [21] |  |
| Bissektipelta | 2004 | Bissekty Formation (Late Cretaceous, Turonian to Coniacian) | Uzbekistan | Analysis of its braincase suggests poor hearing and eyesight but good olfaction and taste. It has been suggested to be a filter feeder [22] |  |
| Bolong | 2010 | Yixian Formation (Early Cretaceous, Aptian) | China | Originally known from only a skull. An almost complete skeleton was described in 2013 [23] |  |
| Borealosaurus | 2004 | Sunjiawan Formation (Late Cretaceous, Cenomanian to Turonian) | China | Its caudal vertebrae were distinctively opisthocoelous |  |
| Borogovia | 1987 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had a uniquely straight, flattened sickle claw, which may have had a weight-bearing function |  |
| Breviceratops | 1990 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Only known from juvenile remains but can be distinguished from other protoceratopsids |  |
| Brohisaurus | 2003 | Sembar Formation (Late Jurassic, Kimmeridgian) |  Pakistan | Possibly an early titanosauriform |  |
| Byronosaurus | 2000 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Two juvenile skulls were found in an oviraptorid nest and claimed to be evidence of nest parasitism in this taxon, but both their identity and taphonomy have been questioned [4] [24] |  |
| Caenagnathasia | 1994 | Bissekty Formation (Late Cretaceous, Turonian to Coniacian) | Uzbekistan | One of the oldest and smallest known caenagnathoids |  |
| Caihong | 2018 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | Possessed platelet-shaped melanosomes that produced iridescence as in modern trumpeters |  |
| Caudipteryx | 1998 | Yixian Formation (Early Cretaceous, Aptian) | China | Two species are known. At least C. zoui did not have secondary feathers attached to the lower arm |  |
| Ceratonykus | 2009 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Several osteological features were described as similar to ornithischians [25] |  |
| Changchunsaurus | 2005 | Quantou Formation (Early Cretaceous to Late Cretaceous, Aptian to Cenomanian) | China | Had wavy enamel on its leaf-shaped teeth that made them more resistant to wear. This feature is also present in hadrosaurs [26] |  |
| Changmiania | 2020 | Yixian Formation (Early Cretaceous, Barremian) | China | Preserved in a curled up position as if it was sleeping in a potential burrow |  |
| Changyuraptor | 2014 | Yixian Formation (Early Cretaceous, Barremian) | China | The largest microraptorian dromaeosaurid known. Had tail feathers almost a foot long [27] |  |
| Chaoyangsaurus | 1999 | Tuchengzi Formation (Late Jurassic, Tithonian) | China | Known by a number of alternate spellings (e.g. Chaoyangosaurus, Chaoyoungosaurus) before its formal description |  |
| Charonosaurus | 2000 | Yuliangze Formation (Late Cretaceous, Maastrichtian) | China | May have had a long, backwards-curving crest similar to that of Parasaurolophus |  |
| Chialingosaurus | 1959 | Shaximiao Formation (Late Jurassic, Oxfordian to Kimmeridgian) | China | Had both large spines and smaller plates, similar to Kentrosaurus |  |
| Chiayusaurus | 1953 | Hasandong Formation?, Xinminbao Group (Early Cretaceous, Barremian to Albian?) | China
 South Korea? | Two species have been named, both from teeth. Those of C. lacustris are apparently indistinguishable from those of Euhelopus [28] or Mamenchisaurus [29] | |
| Chilantaisaurus | 1964 | Ulansuhai Formation (Late Cretaceous, Turonian) | China | Had a particularly hooked claw on its first finger |  |
| Chingkankousaurus | 1958 | Wangshi Group (Late Cretaceous, Campanian) | China | Known from only a scapula. Possibly a tyrannosauroid [30] | |
| Chinshakiangosaurus | 1992 | Fengjiahe Formation (Early Jurassic, Hettangian) | China | Had a U-shaped snout that may have supported fleshy cheeks, an adaptation to bulk feeding | |
| Choyrodon | 2018 | Khuren Dukh Formation (Early Cretaceous, Albian) | Mongolia | It had an enlarged nose similar to its contemporary Altirhinus , but it is most likely a separate taxon [31] |  |
| Chuandongocoelurus | 1984 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | A tetanuran of uncertain relationships |  |
| Chuanjiesaurus | 2000 | Chuanjie Formation (Middle Jurassic, Bathonian) | China | One of the most derived mamenchisaurids [32] |  |
| Chuanqilong | 2014 | Jiufotang Formation (Early Cretaceous, Barremian to Aptian) | China | May have been the adult form of the coeval Liaoningosaurus [33] |  |
| Chungkingosaurus | 1983 | Shaximiao Formation (Late Jurassic, Oxfordian) | China | May have possessed at least six thagomizer spikes. The rearmost pair was mounted horizontally, directed outwards and backwards |  |
| Chuxiongosaurus | 2010 | Lufeng Formation (Early Jurassic, Hettangian to Pliensbachian) | China | Potentially a synonym of Jingshanosaurus [34] | |
| Citipati | 2001 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Had a distinctive triangular crest. A referred specimen known as the Zamyn Khondt oviraptorid possessed the familiar rectangular domed crest in most depictions of Oviraptor , but likely does not belong to that genus or Citipati [35] |  |
| Conchoraptor | 1986 | Barun Goyot Formation, Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Named for a hypothesized diet of shellfish, but this cannot be confirmed |  |
| Corythoraptor | 2017 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Its crest was vertical and rectangular, not unlike that of a cassowary |  |
| Crichtonpelta | 2015 | Sunjiawan Formation (Late Cretaceous, Cenomanian) | China | Originally named as a second species of Crichtonsaurus | |
| Crichtonsaurus | 2002 | Sunjiawan Formation (Late Cretaceous, Cenomanian to Turonian) | China | Sometimes reconstructed with semicircular osteoderms vaguely similar to the plates of stegosaurs |  |
| Daanosaurus | 2005 | Shaximiao Formation (Late Jurassic, Oxfordian to Tithonian) | China | Its phylogenetic position is uncertain as it is only known from the remains of a juvenile | |
| Daliansaurus | 2017 | Yixian Formation (Early Cretaceous, Barremian) | China | Had an enlarged claw on the fourth toe comparable in size to the sickle claw on its second toe |  |
| Dashanpusaurus | 2005 | Shaximiao Formation (Middle Jurassic, Callovian) | China | One of the basalmost and earliest known macronarians [36] | |
| Datai | 2024 | Zhoutian Formation (Late Cretaceous, Turonian to Coniacian) | China | Known from two associated specimens, including their skulls |  |
| Datanglong | 2014 | Xinlong Formation (Early Cretaceous, Barremian to Albian) | China | Had a uniquely pneumatized ilium similar to megaraptorans | |
| Datonglong | 2016 | Huiquanpu Formation (Late Cretaceous, Cenomanian to Campanian) | China | The precise dating of its remains is uncertain | |
| Datousaurus | 1984 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | One of the rarest sauropods of the Shaximiao Formation, known from only two skeletons and a large, deep skull |  |
| Daurlong | 2022 | Longjiang Formation (Early Cretaceous, Aptian) | China | Preserves remains of an intestinal tract |  |
| Daxiatitan | 2008 | Hekou Group (Early Cretaceous, Barremian) | China | Large and relatively long-necked |  |
| Deinocheirus | 1970 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had a suite of unique features, most notably a hump supported by elongated neural spines |  |
| Dilong | 2004 | Yixian Formation (Early Cretaceous, Barremian) | China | Preserves evidence of a coating of simple feathers |  |
| Dongbeititan | 2007 | Yixian Formation (Early Cretaceous, Barremian) | China | A theropod tooth has been found encrusted in one of its ribs [37] |  |
| Dongyangopelta | 2013 | Chaochuan Formation (Early Cretaceous to Late Cretaceous, Albian to Cenomanian) | China | Coexisted with Zhejiangosaurus but could be distinguished based on subtle osteological features [38] | |
| Dongyangosaurus | 2008 | Jinhua Formation (Late Cretaceous, Turonian to Coniacian) | China | Its phylogenetic placement is uncertain |  |
| Dzharacursor | 2025 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | Originally named as a species of Archaeornithomimus |  |
| Dzharaonyx | 2022 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | One of the oldest known parvicursorines | |
| Dzharatitanis | 2021 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | Originally described as a rebbachisaurid [39] but later reinterpreted as a titanosaur with possible lognkosaurian affinities [40] |  |
| Elmisaurus | 1981 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | One of the most complete caenagnathids known |  |
| Embasaurus | 1931 | Neocomian Sands (Early Cretaceous, Berriasian) | Kazakhstan | Known from only two vertebrae |  |
| Enigmosaurus | 1983 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Had a large, backwards-pointing pelvis |  |
| Eomamenchisaurus | 2008 | Zhanghe Formation (Middle Jurassic to Late Jurassic, Aalenian to Oxfordian) | China | One of the oldest mamenchisaurids | |
| Eosinopteryx | 2013 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | Described as lacking advanced tail feathers and long "hind wings", unlike other paravians, but this may be an artifact of preservation [41] |  |
| Epidexipteryx | 2008 | Haifanggou Formation (Middle Jurassic, Callovian) | China | Supported four long feathers coming out from an abbreviated tail |  |
| Equijubus | 2003 | Xinminbao Group (Early Cretaceous, Albian) | China | A grazer that preserves the oldest known evidence of grass-eating [42] |  |
| Erketu | 2006 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | May have had the longest neck of any dinosaur relative to its body |  |
| Erliansaurus | 2002 | Iren Dabasu Formation (Late Cretaceous, Cenomanian) | China | Had long, curved claws on its fingers |  |
| Erlikosaurus | 1980 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Preserves the most complete skull known from any therizinosaur |  |
| Eshanosaurus | 2001 | Lufeng Formation (Early Jurassic, Hettangian) | China | Has been suggested to be the oldest known therizinosaur |  |
| Euhelopus | 1956 | Meng-Yin Formation (Early Cretaceous, Berriasian to Valanginian) | China | Originally believed to have lived in a marshy environment |  |
| Euronychodon | 1991 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | The type species was found in Portugal. The Asian species may represent a form taxon of improperly developed teeth [43] | |
| Ferganasaurus | 2003 | Balabansai Formation (Middle Jurassic, Callovian) | Kyrgyzstan | Claimed to have two hand claws, but this has been disputed [44] | |
| Ferganocephale | 2005 | Balabansai Formation (Middle Jurassic, Callovian) | Kyrgyzstan | Unusually, its teeth were not serrated | |
| Fujianvenator | 2023 | Nanyuan Formation (Late Jurassic, Tithonian) | China | Possessed proportionally long legs which may be an adaptation to wading |  |
| Fukuiraptor | 2000 | Kitadani Formation, Sebayashi Formation? (Early Cretaceous, Barremian to Aptian) | Japan | Similarly to Megaraptor , it was originally reconstructed as a dromaeosaur with its hand claw on its foot |  |
| Fukuisaurus | 2003 | Kitadani Formation (Early Cretaceous, Barremian) | Japan | The elements of its skull are so strongly fused that it was unable to chew [45] |  |
| Fukuititan | 2010 | Kitadani Formation (Early Cretaceous, Barremian to Aptian) | Japan | The first sauropod named from Japan |  |
| Fukuivenator | 2016 | Kitadani Formation (Early Cretaceous, Barremian to Aptian) | Japan | Possesses traits of various groups of coelurosaurs, although it may probably be a therizinosaur. [46] May have been a herbivore or omnivore due to its heterodont dentition |  |
| Fulengia | 1977 | Lufeng Formation (Early Jurassic, Hettangian to Toarcian) | China | May have been a juvenile Lufengosaurus | |
| Fushanosaurus | 2019 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Known from a single femur of immense size | |
| Fusuisaurus | 2006 | Xinlong Formation (Early Cretaceous, Aptian to Albian) | China | A referred humerus may support an extremely large size for this taxon [47] | |
| Gallimimus | 1972 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had a relatively long beak with a rounded tip |  |
| Gandititan | 2024 | Zhoutian Formation (Late Cretaceous, Cenomanian to Turonian) | China | Possibly a close relative of the Mongolian Abdarainurus [48] |  |
| Gannansaurus | 2013 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Its vertebrae were more similar to those of Euhelopus than to other sauropods |  |
| Ganzhousaurus | 2013 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Coexisted with at least seven other oviraptorosaurs, which may have niche-partitioned. It was likely primarily herbivorous [49] |  |
| Garudimimus | 1981 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Was not as well-adapted to running as later ornithomimosaurs |  |
| Gasosaurus | 1985 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Discovered as a byproduct of construction work |  |
| Gigantoraptor | 2007 | Iren Dabasu Formation (Late Cretaceous, Cenomanian) | China | The largest known oviraptorosaur, comparable in size to Albertosaurus |  |
| Gigantspinosaurus | 1992 | Shaximiao Formation (Late Jurassic, Oxfordian) | China | Possessed broad, greatly enlarged shoulder spines |  |
| Gilmoreosaurus | 1979 | Bissekty Formation?, Iren Dabasu Formation, Khodzhakul Formation? (Late Cretaceous, Cenomanian) | China
Uzbekistan? | Several fossils preserve evidence of cancer-induced tumors [50] |  |
| Gobihadros | 2019 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Known from multiple specimens representing different growth stages |  |
| Gobiraptor | 2019 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Possessed a deep jaw that may be an adaptation to crushing bivalves or seeds [51] |  |
| Gobisaurus | 2001 | Miaogou Formation (Early Cretaceous, Barremian to Albian) | China | Had no tail club but already possessed the stiff tail of derived ankylosaurids [52] |  |
| Gobititan | 2003 | Xinminbao Group (Early Cretaceous, Aptian) | China | Retained the fifth digit of the foot, a basal trait | |
| Gobivenator | 2014 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | The most completely known Cretaceous troodontid |  |
| Gongbusaurus | 1983 | Shaximiao Formation (Late Jurassic, Oxfordian) | China | Only known from a pair of teeth. May be an ankylosaurian [53] | |
| Gongpoquansaurus | 2014 | Xinminbao Group (Early Cretaceous, Albian) | China | Remains originally named as a species of Probactrosaurus |  |
| Gongxianosaurus | 1998 | Ziliujing Formation (Early Jurassic, Toarcian) | China | The only sauropod with ossified distal tarsals, hinting at its basal position | |
| Goyocephale | 1982 | Unnamed formation (Late Cretaceous, Campanian) | Mongolia | Had a sloping head with a flat skull roof |  |
| Graciliceratops | 2000 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Possessed a short frill with large fenestrae |  |
| Graciliraptor | 2004 | Yixian Formation (Early Cretaceous, Barremian) | China | A close relative of Microraptor with characteristically slender bones |  |
| Guanlong | 2006 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Two specimens have been discovered, one on top of the other |  |
| Halszkaraptor | 2017 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Originally interpreted as a semiaquatic fish hunter similar to a merganser [54] but this hypothesis has been criticized [55] |  |
| Hamititan | 2021 | Shengjinkou Formation (Early Cretaceous, Valanginian) | China | Known from seven caudal vertebrae and associated elements |  |
| Haplocheirus | 2010 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Possessed three long fingers with short claws. Originally described as a basal alvarezsauroid but similarities have been noted with other coelurosaurs [56] [57] |  |
| Harenadraco | 2024 | Barun Goyot Formation (Late Cretaceous, Campanian?) | Mongolia | The first troodontid described from the Barun Goyot Formation [58] |  |
| Harpymimus | 1984 | Khuren Dukh Formation?/Shinekhudag Formation? (Early Cretaceous, Albian) | Mongolia | Mostly toothless but retains a few teeth in the dentary |  |
| Haya | 2011 | Javkhlant Formation (Late Cretaceous, Santonian to Campanian) | Mongolia | One specimen preserves a large mass of gastroliths |  |
| Heishansaurus | 1953 | Minhe Formation (Late Cretaceous, Campanian to Maastrichtian) | China | May be a junior synonym of Pinacosaurus [59] | |
| Helioceratops | 2009 | Quantou Formation (Early Cretaceous to Late Cretaceous, Albian to Cenomanian) | China | Had a distinctively short lower jaw |  |
| Hexing | 2012 | Yixian Formation (Early Cretaceous, Valanginian to Barremian) | China | Three or four teeth are known, but they are not well-preserved |  |
| Hexinlusaurus | 2005 | Shaximiao Formation (Middle Jurassic, Bajocian?) | China | Originally named as a species of Yandusaurus |  |
| Heyuannia | 2002 | Barun Goyot Formation, Dalangshan Formation (Late Cretaceous, Maastrichtian) | China
Mongolia | Fossilized pigments in referred eggshells suggest they were blue-green [60] |  |
| Homalocephale | 1974 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Has been suggested to be a juvenile Prenocephale on account of its flat head, [61] but this is no longer thought to be the case [62] |  |
| Huabeisaurus | 2000 | Huiquanpu Formation (Late Cretaceous, Cenomanian to Maastrichtian) | China | May be closely related to Tangvayosaurus [63] |  |
| Huadanosaurus | 2025 | Yixian Formation (Early Cretaceous, Barremian) | China | Similar to Sinosauropteryx but its skull shape suggests a different hunting strategy |  |
| Hualianceratops | 2015 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Had a series of bumps around the edge of the beak |  |
| Huanansaurus | 2015 | Nanxiong Formation (Late Cretaceous, Campanian to Maastrichtian) | China | Possessed a distinctive short trapezoidal crest |  |
| Huanghetitan | 2006 | Haoling Formation, Hekou Group (Early Cretaceous, Aptian to Albian) | China | Had ribs estimated to be 3 metres (9.8 ft) long, which supported one of the deepest body cavities of any dinosaur [64] |  |
| Huangshanlong | 2014 | Hongqin Formation (Middle Jurassic to Late Jurassic, Aalenian to Oxfordian) | China | Known from some bones of the right forelimb |  |
| Huaxiagnathus | 2004 | Yixian Formation (Early Cretaceous, Aptian) | China | One of the largest known compsognathids |  |
| Huaxiazhoulong | 2024 | Tangbian Formation (Late Cretaceous, Campanian) | China | Known from a nearly complete, well-preserved skeleton |  |
| Huayangosaurus | 1982 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Possessed flank osteoderms and a small tail club in addition to plates and spikes |  |
| Hudiesaurus | 1997 | Kalaza Formation (Late Jurassic, Tithonian) | China | Had a butterfly-shaped process on its vertebra |  |
| Hulsanpes | 1982 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Closely related to Halszkaraptor but appears to be more cursorial [65] |  |
| Hypnovenator | 2024 | Ohyamashimo Formation (Early Cretaceous, Albian) | Japan | The first troodontid named from Japan |  |
| Ichthyovenator | 2012 | Grès supérieurs Formation (Early Cretaceous, Aptian) |  Laos | One of its sacral vertebrae was greatly reduced, giving the illusion of a break in its sail or of two separate sails |  |
| Incisivosaurus | 2002 | Yixian Formation (Early Cretaceous, Barremian) | China | Two specimens of different ontogenetic stages are known, both with differing types of feathers [66] |  |
| Irisosaurus | 2020 | Fengjiahe Formation (Early Jurassic, Hettangian) | China | Closely related to Mussaurus [67] |  |
| Isanosaurus | 2000 | Nam Phong Formation (Uncertain age) |  Thailand | Originally thought to be from the Late Triassic but it may have actually come from the Early Jurassic [68] or even the Late Jurassic [69] |  |
| Ischioceratops | 2015 | Wangshi Group (Late Cretaceous, Campanian to Maastrichtian) | China | Noted for its peculiarly-shaped ischium |  |
| Isisaurus | 2003 | Pab Formation (Late Cretaceous, Maastrichtian) | Pakistan | The only non-avian dinosaur known from both India and mainland Asia |  |
| Itemirus | 1976 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | Originally known from a braincase but abundant new remains were described in 2014 [70] |  |
| Jaculinykus | 2023 | Barun Goyot Formation (Late Cretaceous, Maastrichtian) | Mongolia | Was didactyl, with a large first finger and a reduced second finger |  |
| Jaxartosaurus | 1937 | Dabrazhin Formation (Late Cretaceous, Santonian) | Kazakhstan | Not known from many remains but they are enough to tell that it was a basal lambeosaurine [71] |  |
| Jeholosaurus | 2000 | Yixian Formation (Early Cretaceous, Aptian) | China | One specimen is preserved in a curled up position |  |
| Jianchangosaurus | 2013 | Yixian Formation (Early Cretaceous, Barremian) | China | Several characters of its teeth and jaws are convergently similar to those of ornithischians [72] |  |
| Jiangjunosaurus | 2007 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Had two rows of circular or diamond-shaped plates |  |
| Jiangshanosaurus | 2001 | Jinhua Formation (Late Cretaceous, Turonian to Coniacian) | China | A potential member of the Euhelopodidae [73] |  |
| Jiangxisaurus | 2013 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Overall similar to Heyuannia but with a thinner, frailer mandible |  |
| Jiangxititan | 2023 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Although originally described as a titanosaur, a later analysis recovers it as a somphospondylian placed outside of that group [48] |  |
| Jianianhualong | 2017 | Yixian Formation (Early Cretaceous, Aptian) | China | Possessed a subtriangular tail frond made of asymmetrical feathers, although it was most likely flightless |  |
| Jinbeisaurus | 2019 | Huiquanpu Formation (Late Cretaceous, Cenomanian to Maastrichtian) | China | A medium-sized tyrannosauroid | |
| Jinfengopteryx | 2005 | Huajiying Formation (Early Cretaceous, Barremian) | China | May have been capable of some sort of flight [74] |  |
| Jingiella | 2024 | Dongxing Formation (Late Jurassic, Kimmeridgian?) | China | Initially named Jingia but that name is already in use by a moth [75] |  |
| Jingshanosaurus | 1995 | Lufeng Formation (Early Jurassic, Hettangian) | China | One of the latest-surviving non-sauropod sauropodomorphs |  |
| Jintasaurus | 2009 | Xinminbao Group (Early Cretaceous, Albian) | China | Known from only the rear half of a skull, including a complete braincase |  |
| Jinyunpelta | 2018 | Liangtoutang Formation (Early Cretaceous to Late Cretaceous, Albian to Cenomanian) | China | The oldest ankylosaurid known to have a tail club |  |
| Jinzhousaurus | 2001 | Yixian Formation (Early Cretaceous, Aptian) | China | Its holotype is nearly complete, preserved whole on a single slab |  |
| Jiutaisaurus | 2006 | Quantou Formation (Early Cretaceous to Late Cretaceous, Barremian to Cenomanian) | China | Named based on eighteen vertebrae | |
| Kaijiangosaurus | 1984 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Potentially synonymous with other medium-sized Shaximiao theropods |  |
| Kamuysaurus | 2019 | Yezo Group (Late Cretaceous, Maastrichtian) | Japan | Informally referred to as "Mukawaryu" before its formal description |  |
| Kansaignathus | 2021 | Ialovachsk Formation (Late Cretaceous, Santonian) |  Tajikistan | The first non-avian dinosaur described from Tajikistan |  |
| Kazaklambia | 2013 | Dabrazhin Formation (Late Cretaceous, Santonian) | Kazakhstan | Morphologically distinct from other Eurasian lambeosaurines [76] |  |
| Kelmayisaurus | 1973 | Tugulu Group (Early Cretaceous, Valanginian to Albian) | China | One popular book mentions a giant species belonging to this genus, [77] but this referral may be incorrect |  |
| Kerberosaurus | 2004 | Tsagayan Formation (Late Cretaceous, Maastrichtian) | Russia | Potentially a close relative of Edmontosaurus [78] |  |
| Khaan | 2001 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Two morphotypes of chevrons are known, which may be a sexually dimorphic trait [79] |  |
| Khulsanurus | 2021 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Contemporary with Parvicursor but can be distinguished by characters of its caudal vertebrae [80] | |
| Kileskus | 2010 | Itat Formation (Middle Jurassic, Bathonian) | Russia | Uncertain if it possesses the head crest as seen in other proceratosaurids |  |
| Kinnareemimus | 2009 | Sao Khua Formation (Early Cretaceous, Barremian) | Thailand | Potentially one of the oldest ornithomimosaurs |  |
| Kiyacursor | 2024 | Ilek Formation (Early Cretaceous, Aptian) | Russia | Represents a relict population of Jurassic noasaurids |  |
| Klamelisaurus | 1993 | Shishugou Formation (Middle Jurassic, Callovian) | China | Close relatives included several referred species of Mamenchisaurus [81] |  |
| Kol | 2009 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Had a "hyperarctometatarsus" more strongly pinched than other arctometatarsalian taxa. Described as an alvarezsaurid [82] but has been suggested to be related to Avimimus [83] | |
| Koreaceratops | 2011 | Tando Beds (Early Cretaceous, Albian) | South Korea | Possessed elongated neural spines on its caudal vertebrae. Its describers suggest that it was used as a swimming organ, [84] but a later study found it to live in a semiarid environment, making this unlikely [85] |  |
| Koreanosaurus | 2011 | Seonso Conglomerate (Late Cretaceous, Campanian) | South Korea | Had short but powerful forelimbs, suggesting it may have been a quadruped [86] |  |
| Koshisaurus | 2015 | Kitadani Formation (Early Cretaceous, Barremian to Aptian) | Japan | Distinguished from other hadrosauroids by the presence of an antorbital fossa |  |
| Kulceratops | 1995 | Khodzhakul Formation (Early Cretaceous, Albian) | Uzbekistan | Only known from fragments of a jaw and teeth |  |
| Kulindadromeus | 2014 | Ukureyskaya Formation (Middle Jurassic, Bathonian) | Russia | An ornithischian that preserves evidence of filaments, suggesting that protofeathers were basal to Dinosauria as a whole |  |
| Kundurosaurus | 2012 | Udurchukan Formation (Late Cretaceous, Maastrichtian) | Russia | May be synonymous with Kerberosaurus [87] |  |
| Kuru | 2021 | Barun Goyot Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had been informally referred to as "Airakoraptor" prior to its formal description |  |
| Laiyangosaurus | 2019 | Wangshi Group (Late Cretaceous, Maastrichtian) | China | Some specimens referred to this genus actually belong to kritosaurins and lambeosaurines [88] |  |
| Lanzhousaurus | 2005 | Hekou Group (Early Cretaceous, Barremian) | China | Possessed the largest known teeth of any dinosaur |  |
| Leshansaurus | 2009 | Shaximiao Formation (Late Jurassic, Oxfordian to Kimmeridgian) | China | Its braincase is nearly identical to that of Piveteausaurus [89] |  |
| Levnesovia | 2009 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | One of the smallest known hadrosauroids [44] | |
| Liaoceratops | 2002 | Yixian Formation (Early Cretaceous, Barremian) | China | One specimen was found without a skull roof, possibly displaced by a predator to eat its brain [90] |  |
| Liaoningosaurus | 2001 | Jiufotang Formation, Yixian Formation (Early Cretaceous, Barremian to Aptian) | China | One specimen has been interpreted as possessing fork-like teeth, sharp claws and stomach contents including fish, which has been claimed to be evidence of a semi-aquatic, turtle-like lifestyle [91] |  |
| Liaoningotitan | 2018 | Yixian Formation (Early Cretaceous, Barremian) | China | The second sauropod named from the Yixian Formation | |
| Liaoningvenator | 2017 | Yixian Formation (Early Cretaceous, Barremian) | China | Uniquely preserved with the head curving forwards, differing from the classic theropod "death pose" and the sleeping position of other troodontids |  |
| Limusaurus | 2009 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Multiple specimens from different growth stages are known. Juveniles possessed teeth which were lost and replaced with a beak as adults, suggesting a change in diet [92] |  |
| Lingwulong | 2018 | Yanan Formation?/Zhiluo Formation? (Middle Jurassic to Late Jurassic, Aalenian to Oxfordian) | China | The first confirmed diplodocoid from Asia. Originally considered to date from the Early Jurassic, making it the oldest known neosauropod, but this age has been disputed [93] [94] |  |
| Lingyuanosaurus | 2019 | Jiufotang Formation?/Yixian Formation? (Early Cretaceous, Valanginian to Aptian) | China | Possessed a mix of basal and derived therizinosaurian traits |  |
| Linhenykus | 2011 | Bayan Mandahu Formation (Late Cretaceous, Campanian to Maastrichtian) | China | Completely monodactyl due to lacking the vestigial second and third fingers of other alvarezsaurids |  |
| Linheraptor | 2010 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Potentially a synonym of Tsaagan [95] |  |
| Linhevenator | 2011 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Had a greatly enlarged sickle claw, comparable in size to those of dromaeosaurids |  |
| Lishulong | 2024 | Lufeng Formation (Early Jurassic, Sinemurian to Toarcian) | China | Had the largest skull of any Chinese basal sauropodomorph |  |
| Liubangosaurus | 2010 | Xinlong Formation (Early Cretaceous, Barremian to Aptian) | China | Described only as a eusauropod [96] but has since been reinterpreted as a somphospondylian [97] | |
| Luanchuanraptor | 2007 | Qiupa Formation (Late Cretaceous, Maastrichtian) | China | The first Asian dromaeosaurid found outside the Gobi Desert and northeastern China. May have been closely related to Adasaurus [56] |  |
| Lufengosaurus | 1940 | Lufeng Formation (Early Jurassic, Hettangian to Sinemurian) | China | The rib of one specimen preserves the oldest known evidence of collagen proteins [98] |  |
| Luoyanggia | 2009 | Haoling Formation (Early Cretaceous, Aptian to Albian) | China | Originally believed to date from the Late Cretaceous | |
| Machairasaurus | 2010 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Its hand claws are elongated and blade-like in side view |  |
| Mahakala | 2007 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Possessed basal traits for a dromaeosaurid. May be a close relative of Halszkaraptor [99] |  |
| Maleevus | 1987 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Its only purportedly distinguishing trait is also shared with Pinacosaurus [38] | |
| Mamenchisaurus | 1954 | Penglaizhen Formation, Shaximiao Formation, Shishugou Formation, Suining Formation (Late Jurassic to Early Cretaceous, Oxfordian to Aptian) | China | Several species have been named, but most may not belong to this genus [81] |  |
| Mandschurosaurus | 1930 | Grès supérieurs Formation?, Yuliangze Formation (Late Cretaceous, Maastrichtian) | China
Laos? | One of the first non-avian dinosaurs named from Chinese remains |  |
| Mei | 2004 | Yixian Formation (Early Cretaceous, Aptian) | China | Two specimens are preserved in bird-like sleeping positions [100] |  |
| Microceratus | 2008 | Unnamed formation (Late Cretaceous, Turonian) | China | Originally named Microceratops, although that genus name is preoccupied by a wasp |  |
| Microhadrosaurus | 1979 | Nanxiong Formation (Late Cretaceous, Campanian to Maastrichtian) | China | Reportedly an unusually small hadrosaurid | |
| Micropachycephalosaurus | 1978 | Wangshi Group (Late Cretaceous, Campanian) | China | Had the longest name of any known dinosaur |  |
| Microraptor | 2000 | Jiufotang Formation (Early Cretaceous, Aptian) | China | Known from over three hundred fossils. [101] Several are well-preserved enough to reveal fine details such as feather covering and an iridescent black coloration [102] |  |
| Migmanychion | 2023 | Longjiang Formation (Early Cretaceous, Aptian) | China | Its hand combines features of multiple groups of coelurosaurs |  |
| Minimocursor | 2023 | Phu Kradung Formation (Late Jurassic, Tithonian) | Thailand | The first basal neornithischian known from southeastern Asia |  |
| Minotaurasaurus | 2009 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | The holotype skull was excavated illegally, which obscured its true provenance until recently |  |
| Mongolosaurus | 1933 | On Gong Formation (Early Cretaceous, Aptian to Albian) | China | Known from only scant remains but has been confidently assigned to the Somphospondyli in recent years [97] |  |
| Mongolostegus | 2018 | Dzunbain Formation (Early Cretaceous, Aptian to Albian) | Mongolia | Informally assigned to the genus Wuerhosaurus before its formal description |  |
| Monkonosaurus | 1986 | Loe-ein Formation?/Lura Formation? (Late Jurassic, Oxfordian to Kimmeridgian?/Early Cretaceous, Albian?) | China | Poorly known | |
| Monolophosaurus | 1993 | Shishugou Formation (Middle Jurassic, Bathonian to Callovian) | China | Possessed a short, rectangular crest running along the midline of the skull |  |
| Mononykus | 1993 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Proposed to have an anteater-like lifestyle, using its unique forearms to break into termite mounds [103] |  |
| Mosaiceratops | 2015 | Xiaguan Formation (Late Cretaceous, Turonian to Campanian) | China | Combined features of different groups of basal ceratopsians |  |
| Nankangia | 2013 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | May have been specialized in soft foods such as leaves and seeds [104] |  |
| Nanningosaurus | 2007 | Unnamed formation (Late Cretaceous, Maastrichtian) | China | Potentially a basal lambeosaurine | |
| Nanshiungosaurus | 1979 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Originally misidentified as a sauropod on account of its unusual pelvis |  |
| Nanyangosaurus | 2000 | Xiaguan Formation (Late Cretaceous, Turonian to Campanian) | China | Completely lost the first digit of its hands |  |
| Napaisaurus | 2022 | Xinlong Formation (Early Cretaceous, Aptian to Albian) | China | May be closely related to contemporary Thai iguanodonts | |
| Natovenator | 2022 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Possessed a streamlined body and a long, toothed snout, convergently similar to several groups of aquatic vertebrates |  |
| Nebulasaurus | 2015 | Zhanghe Formation (Middle Jurassic, Aalenian to Bajocian) | China | Only known from a single braincase, but it is enough to tell that it was related to Spinophorosaurus |  |
| Neimongosaurus | 2001 | Iren Dabasu Formation (Late Cretaceous, Cenomanian) | China | Could extend its arms considerably forwards due to the structure of its shoulder joints [105] |  |
| Nemegtomaia | 2005 | Barun Goyot Formation, Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | One specimen preserves traces of damage by skin beetles [106] |  |
| Nemegtonykus | 2019 | Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | The second alvarezsaurid named from the Nemegt Formation |  |
| Nemegtosaurus | 1971 | Nemegt Formation, Subashi Formation? (Late Cretaceous, Maastrichtian) | China?
Mongolia | Had a long, low skull similar in proportions to those of diplodocoids |  |
| Ningyuansaurus | 2012 | Yixian Formation (Early Cretaceous, Aptian) | China | Preserves small oval-shaped structures in its stomach region which may be seeds | |
| Nipponosaurus | 1936 | Yezo Group (Late Cretaceous, Santonian to Campanian) | Russia | Discovered on the island of Sakhalin, which was owned by Japan in 1936 but later annexed by Russia |  |
| Oksoko | 2020 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Its third finger was so greatly reduced that it was functionally didactyl |  |
| Olorotitan | 2003 | Udurchukan Formation (Late Cretaceous, Maastrichtian) | Russia | Had a broad, hatchet-shaped crest |  |
| Omeisaurus | 1939 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Members of this genus are characterized by extremely elongated necks |  |
| Ondogurvel | 2022 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Known from well-preserved remains of the hands and feet |  |
| Opisthocoelicaudia | 1977 | Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | Walked on its metacarpals due to its complete lack of phalanges |  |
| Oviraptor | 1924 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Originally mistakenly thought to be an egg-eater |  |
| Pachysuchus | 1951 | Lufeng Formation (Early Jurassic, Sinemurian to Pliensbachian) | China | Considered a phytosaur from its original naming until a redescription in 2012 [107] | |
| Panguraptor | 2014 | Lufeng Formation (Early Jurassic, Hettangian to Sinemurian) | China | The first definitive coelophysoid known from Asia |  |
| Papiliovenator | 2021 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Had a short, subtriangular skull similar to those of Early Cretaceous troodontids |  |
| Paralitherizinosaurus | 2022 | Yezo Group (Late Cretaceous, Campanian) | Japan | Had stiffened claws that may have been used to pull vegetation to the mouth [108] |  |
| Parvicursor | 1996 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Originally believed to represent a diminutive adult dinosaur, although it was recently reinterpreted as a juvenile [109] |  |
| Pedopenna | 2005 | Haifanggou Formation (Middle Jurassic to Late Jurassic, Callovian to Oxfordian) | China | Known from a single leg with the impressions of long, symmetrical feathers |  |
| Peishansaurus | 1953 | Minhe Formation (Late Cretaceous, Santonian to Campanian) | China | Has been compared to thyreophorans and marginocephalians, but it is impossible to determine which assignment is correct | |
| Penelopognathus | 2005 | Bayin-Gobi Formation (Early Cretaceous, Albian) | China | Named from a single dentary | |
| Phaedrolosaurus | 1973 | Tugulu Group (Early Cretaceous, Valanginian to Albian) | China | May have been a dromaeosaurid [110] | |
| Philovenator | 2012 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Closely related to the contemporary Linhevenator [100] but likely represents a separate taxon [111] |  |
| Phuwiangosaurus | 1994 | Sao Khua Formation (Early Cretaceous, Valanginian to Hauterivian) | Thailand | A large member of the Euhelopodidae [97] |  |
| Phuwiangvenator | 2019 | Sao Khua Formation (Early Cretaceous, Barremian) | Thailand | Combines features of both allosauroids and coelurosaurs [112] |  |
| Pinacosaurus | 1933 | Bayan Mandahu Formation, Djadochta Formation (Late Cretaceous, Campanian) | China
Mongolia | May have been capable of producing bird-like vocalizations [113] |  |
| Plesiohadros | 2014 | Alagteeg Formation (Late Cretaceous, Campanian) | Mongolia | The first hadrosauroid known from the Alagteeg Formation | |
| Prenocephale | 1974 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had a distinctively conical dome |  |
| Probactrosaurus | 1966 | Miaogou Formation (Early Cretaceous, Barremian to Albian) | China | The closest relative to the Hadrosauromorpha based on the definition of the group [114] |  |
| Prodeinodon | 1924 | Öösh Formation, Xinlong Formation (Early Cretaceous, Barremian to Aptian) | China
Mongolia | Potentially a carnosaur [115] | |
| Protarchaeopteryx | 1997 | Yixian Formation (Early Cretaceous, Aptian) | China | Usually thought to be a basal oviraptorosaur but one study suggests a basal position within Pennaraptora [56] |  |
| Protoceratops | 1923 | Bayan Mandahu Formation, Djadochta Formation (Late Cretaceous, Campanian) | China
Mongolia | Its remains are so abundant that it has been nicknamed the "sheep of the Cretaceous" |  |
| Protognathosaurus | 1991 | Shaximiao Formation (Middle Jurassic, Bathonian to Callovian) | China | Originally named Protognathus, but that name is preoccupied by a beetle [116] | |
| Psittacosaurus | 1923 | Andakhuduk Formation, Bayin-Gobi Formation, Ejinhoro Formation, Ilek Formation, Jiufotang Formation, Khok Kruat Formation?, Öösh Formation, Qingshan Formation, Tugulu Group, Xinminbao Group, Yixian Formation (Early Cretaceous, Barremian to Albian) | China
Mongolia
Russia
Thailand? | Known from hundreds of specimens, many of them well-preserved. Lived in a broad range |  |
| Pukyongosaurus | 2001 | Hasandong Formation (Early Cretaceous, Aptian to Albian) | South Korea | One of its caudal vertebrae has bite marks caused by theropod teeth |  |
| Qianjiangsaurus | 2025 | Zhengyang Formation (Late Cretaceous, Cenomanian to Maastrichtian) | China | This taxon and Nanningosaurus are the only known hadrosauroids from southern China |  |
| Qianlong | 2023 | Ziliujing Formation (Early Jurassic, Sinemurian) | China | Associated with fossils of leathery eggs, the oldest of their kind in the world |  |
| Qianzhousaurus | 2014 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Has been nicknamed "Pinocchio rex" on account of its elongated snout |  |
| Qiaowanlong | 2009 | Xinminbao Group (Early Cretaceous, Aptian) | China | Originally described as a brachiosaurid [117] but has since been reinterpreted as a euhelopodid [118] |  |
| Qijianglong | 2015 | Suining Formation (Early Cretaceous, Aptian) | China | Once believed to date from the Late Jurassic | |
| Qingxiusaurus | 2008 | Unnamed formation (Late Cretaceous, Maastrichtian) | China | Known from very limited remains | |
| Qinlingosaurus | 1996 | Hongtuling Formation?/Shanyang Formation? (Late Cretaceous, Maastrichtian) | China | Potentially a titanosaur given its age, but this cannot be confirmed |  |
| Qiupalong | 2011 | Qiupa Formation (Late Cretaceous, Maastrichtian) | China | Referred specimens were found in Canada [119] and Russia, [120] making it one of the few Late Cretaceous non-avian dinosaur taxa known from both Asia and Laramidia |  |
| Qiupanykus | 2018 | Qiupa Formation (Late Cretaceous, Maastrichtian) | China | May have used its robust thumb claws to crack open oviraptorid eggshells [121] | |
| Quaesitosaurus | 1983 | Barun Goyot Formation (Late Cretaceous, Maastrichtian) | Mongolia | Potentially a close relative of Nemegtosaurus |  |
| Ratchasimasaurus | 2011 | Khok Kruat Formation (Early Cretaceous, Aptian) | Thailand | Only known from a single toothless dentary |  |
| Rhomaleopakhus | 2021 | Kalaza Formation (Late Jurassic, Tithonian) | China | Possessed a robust forelimb that may be a locomotory adaptation |  |
| Rinchenia | 1997 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Had a tall, domed crest |  |
| Ruixinia | 2022 | Yixian Formation (Early Cretaceous, Barremian) | China | Its last few caudal vertebrae were fused into a rod-like structure | |
| Ruyangosaurus | 2009 | Haoling Formation (Early Cretaceous, Aptian to Albian) | China | Only known from scant remains but it was one of the largest dinosaurs known from Asia |  |
| Sahaliyania | 2008 | Yuliangze Formation (Late Cretaceous, Maastrichtian) | China | Possibly a synonym of Amurosaurus [122] |  |
| Saichania | 1977 | Barun Goyot Formation, Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | Possessed complicated nasal passages that may have cooled the air it breathed |  |
| Sanpasaurus | 1944 | Ziliujing Formation (Early Jurassic, Toarcian) | China | Historically conflated with the remains of an ornithischian |  |
| Sanxiasaurus | 2019 | Xintiangou Formation (Middle Jurassic, Bajocian) | China | The oldest neornithischian known from Asia |  |
| Sasayamagnomus | 2024 | Ohyamashimo Formation (Early Cretaceous, Albian) | Japan | At least two individuals are known as indicated by the presence of two right nasal bones among the fossil material |  |
| Saurolophus | 1912 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | The type species was found in Canada. The Asian species is distinguished by its larger size and backwards-pointing diagonal crest |  |
| Sauroplites | 1953 | Zhidan Group (Early Cretaceous, Barremian to Aptian) | China | Preserved lying on its back with parts of its armor in an articulated position | |
| Saurornithoides | 1924 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Its hindlimbs were well-developed even as juveniles, suggesting it needed little to no parental care |  |
| Scansoriopteryx | 2002 | Tiaojishan Formation (Middle Jurassic to Late Jurassic, Callovian to Oxfordian) | China | Was well-adapted for climbing due to the structure of its hands and feet |  |
| Segnosaurus | 1979 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Turonian) | Mongolia | One of the first known therizinosaurs. Its relationships were originally obscure |  |
| Serikornis | 2017 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | Possessed simple, wispy feathers similar to those of a Silkie chicken |  |
| Shamosaurus | 1983 | Dzunbain Formation (Early Cretaceous, Aptian to Albian) | Mongolia | The osteoderms on its head were not separated into obvious tiles as with later ankylosaurids | |
| Shanag | 2007 | Öösh Formation (Early Cretaceous, Berriasian to Barremian) | Mongolia | Shows a mixture of traits of various paravian groups |  |
| Shantungosaurus | 1973 | Wangshi Group (Late Cretaceous, Campanian) | China | The largest known hadrosaurid |  |
| Shanxia | 1998 | Huiquanpu Formation (Late Cretaceous, Cenomanian to Campanian) | China | May be synonymous with Tianzhenosaurus [123] and/or Saichania [38] | |
| Shanyangosaurus | 1996 | Shanyang Formation (Late Cretaceous, Maastrichtian) | China | Indeterminate but its hollow bones are a synapomorphy for the Coelurosauria. One study suggests an oviraptorosaurian position [56] | |
| Shaochilong | 2009 | Miaogou Formation (Early Cretaceous, Barremian to Albian) | China | Originally interpreted as a carcharodontosaurid, but more recent analyses recover it as a potential tyrannosauroid [5] [124] |  |
| Shenzhousaurus | 2003 | Yixian Formation (Early Cretaceous, Aptian) | China | Preserves pebbles in its thoracic cavity which may be gastroliths |  |
| Shidaisaurus | 2009 | Chuanjie Formation (Middle Jurassic, Aalenian) | China | Potentially one of the oldest known allosauroids |  |
| Shishugounykus | 2019 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Its manus combines features of both alvarezsaurians and more basal coelurosaurs |  |
| Shixinggia | 2005 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | Known from a fair amount of postcranial material | |
| Shri | 2021 | Barun Goyot Formation (Late Cretaceous, Maastrichtian) | Mongolia | Before its formal description, it was nicknamed "Ichabodcraniosaurus" because its holotype lacked a skull |  |
| Shuangmiaosaurus | 2003 | Sunjiawan Formation (Early Cretaceous, Albian) | China | Only known from some parts of a skull | |
| Shunosaurus | 1983 | Shaximiao Formation (Late Jurassic, Oxfordian) | China | Possessed a small tail club topped by two short spikes |  |
| Shuvuuia | 1998 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Displays several adaptations that may point to a nocturnal, owl-like lifestyle [125] |  |
| Siamodon | 2011 | Khok Kruat Formation (Early Cretaceous, Aptian) | Thailand | May have been closely related to Probactrosaurus [126] |  |
| Siamosaurus | 1986 | Khok Kruat Formation, Sao Khua Formation (Early Cretaceous, Barremian to Aptian) | Thailand | Only known from teeth. Some spinosaurid postcrania from the same area may be referrable to this genus [127] |  |
| Siamotyrannus | 1996 | Sao Khua Formation (Early Cretaceous, Berriasian to Barremian) | Thailand | Has been recovered in a variety of positions within Avetheropoda |  |
| Siamraptor | 2019 | Khok Kruat Formation (Early Cretaceous, Aptian) | Thailand | Possibly the first carcharodontosaurian known from Southeast Asia |  |
| Sibirotitan | 2018 | Ilek Formation (Early Cretaceous, Barremian) | Russia | Its sacral ribs are star-shaped in dorsal view |  |
| Siluosaurus | 1997 | Xinminbao Group (Early Cretaceous, Barremian to Albian) | China | Has been suggested to be an indeterminate member of the Cerapoda | |
| Silutitan | 2021 | Shengjinkou Formation (Early Cretaceous, Valanginian) | China | Known from six cervical vertebrae associated with a pterosaur jaw |  |
| Similicaudipteryx | 2008 | Jiufotang Formation (Early Cretaceous, Aptian to Albian) | China | Had a short tail ending with a dagger-shaped pygostyle |  |
| Sinankylosaurus | 2020 | Wangshi Group (Late Cretaceous, Campanian) | China | Only known from an ilium. Described as an ankylosaur but a recent study doubts this interpretation [128] | |
| Sinocalliopteryx | 2007 | Yixian Formation (Early Cretaceous, Barremian to Aptian) | China | Stomach contents indicate a possible preference for volant prey such as dromaeosaurids and early birds [129] |  |
| Sinocephale | 2021 | Ulansuhai Formation (Late Cretaceous, Turonian) | China | Originally named as a species of Troodon when that genus was thought to be a pachycephalosaur | |
| Sinoceratops | 2010 | Wangshi Group (Late Cretaceous, Campanian to Maastrichtian) | China | Possessed forward-curving hornlets and a series of low knobs on the top of the frill |  |
| Sinocoelurus | 1942 | Kuangyuan Series (Late Jurassic, Oxfordian to Tithonian?) | China | One study considered it to be a potential plesiosaur [130] |  |
| Sinornithoides | 1993 | Ejinhoro Formation (Early Cretaceous, Aptian to Albian) | China | Preserved in a roosting position, with its head tucked underneath its left wing |  |
| Sinornithomimus | 2003 | Ulansuhai Formation (Late Cretaceous, Turonian) | China | Formed age-segregated herds as evidenced by a concentration of juvenile skeletons [131] |  |
| Sinornithosaurus | 1999 | Yixian Formation (Early Cretaceous, Barremian) | China | One specimen has grooved teeth, suggesting it was venomous [132] |  |
| Sinosauropteryx | 1996 | Yixian Formation (Early Cretaceous, Aptian) | China | The first non-avian dinosaur found with direct evidence of feathers. Analysis of melanosomes suggests it had a countershading pattern with a striped tail and a "bandit mask" around its eyes [133] |  |
| Sinosaurus | 1940 | Lufeng Formation (Early Jurassic, Hettangian to Sinemurian) | China | Had a pair of midline crests similar to Dilophosaurus |  |
| Sinotyrannus | 2009 | Jiufotang Formation (Early Cretaceous, Aptian) | China | One of the largest known early tyrannosauroids. Closely related to smaller forms such as Proceratosaurus and Guanlong |  |
| Sinovenator | 2002 | Yixian Formation (Early Cretaceous, Barremian) | China | Some specimens are preserved three-dimensionally |  |
| Sinraptor | 1994 | Shishugou Formation (Late Jurassic, Oxfordian) | China | May have used its teeth like blades to inflict deep wounds in prey |  |
| Sinusonasus | 2004 | Yixian Formation (Early Cretaceous, Hauterivian) | China | Had distinctive sinusoid nasal bones |  |
| Sirindhorna | 2015 | Khok Kruat Formation (Early Cretaceous, Aptian) | Thailand | Its fossils were discovered by corn farmers while digging a reservoir |  |
| Sonidosaurus | 2006 | Iren Dabasu Formation (Late Cretaceous, Turonian to Santonian) | China | One of the smallest known titanosaurs |  |
| Stegosaurides | 1953 | Xinminbao Group (Early Cretaceous, Hauterivian to Albian) | China | A thyreophoran of uncertain phylogenetic position | |
| Suzhousaurus | 2007 | Xinminbao Group (Early Cretaceous, Aptian to Albian) | China | One of the largest Early Cretaceous therizinosaurs |  |
| Szechuanosaurus | 1942 | Kuangyuan Series (Late Jurassic, Oxfordian to Tithonian?) | China | Only known from teeth and possibly a very fragmentary skeleton |  |
| Talarurus | 1952 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Its tail club has been compared to a wicker basket |  |
| Tambatitanis | 2014 | Ohyamashimo Formation (Early Cretaceous, Albian) | Japan | Possessed disproportionately large chevrons |  |
| Tangvayosaurus | 1999 | Grès supérieurs Formation (Early Cretaceous, Aptian to Albian) | Laos | Closely related to Phuwiangosaurus |  |
| Tanius | 1929 | Wangshi Group (Late Cretaceous, Campanian to Maastrichtian) | China | Today known from only a few bones. More fossils were once present but were not collected |  |
| Taohelong | 2013 | Hekou Group (Early Cretaceous, Albian) | China | Possessed a sacral shield similar to that of Polacanthus | |
| Tarbosaurus | 1955 | Nemegt Formation, Subashi Formation (Late Cretaceous, Maastrichtian) | China
Mongolia | An apex predator that hunted large prey. Very similar to Tyrannosaurus |  |
| Tarchia | 1977 | Barun Goyot Formation, Nemegt Formation (Late Cretaceous, Campanian to Maastrichtian) | Mongolia | One specimen preserves injuries on its ribs and tail, possibly from a fight with a member of its own kind [134] |  |
| Tatisaurus | 1965 | Lufeng Formation (Early Jurassic, Sinemurian) | China | Potentially a basal thyreophoran |  |
| Tengrisaurus | 2017 | Murtoi Formation (Early Cretaceous, Valanginian to Hauterivian) | Russia | Closely related to South American titanosaurs | |
| Therizinosaurus | 1954 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Possessed extremely elongated and stiffened hand claws |  |
| Tianchisaurus | 1993 | Toutunhe Formation (Late Jurassic, Oxfordian to Kimmeridgian) | China | Its description uses the spellings Tianchisaurus and Tianchiasaurus interchangeably, but the former is correct [135] | |
| Tianyulong | 2009 | Tiaojishan Formation (Late Jurassic, Oxfordian) | China | Preserves impressions of long bristles down its back, tail and neck |  |
| Tianyuraptor | 2009 | Yixian Formation (Early Cretaceous, Barremian to Aptian) | China | Combines features of both northern and southern dromaeosaurids. Had unusual proportions |  |
| Tianzhenosaurus | 1998 | Huiquanpu Formation (Late Cretaceous, Cenomanian to Campanian) | China | May be synonymous with Saichania [38] but the discovery of the species T. chengi casts doubt on this interpretation |  |
| Tienshanosaurus | 1937 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Large but basal for a mamenchisaurid [81] |  |
| Timurlengia | 2016 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | Its inner ear was specialized for detecting low-frequency sounds [136] |  |
| Tochisaurus | 1991 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Known from only a single metatarsus |  |
| Tonganosaurus | 2010 | Yimen Formation (Early Jurassic, Pliensbachian) | China | Potentially the oldest known mamenchisaurid | |
| Tongtianlong | 2016 | Nanxiong Formation (Late Cretaceous, Maastrichtian) | China | The pose of the holotype suggests it died while trying to free itself from mud |  |
| Tsaagan | 2006 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | Very similar to Velociraptor but differs in some features of the skull [137] |  |
| Tsagantegia | 1993 | Bayan Shireh Formation (Late Cretaceous, Cenomanian to Santonian) | Mongolia | Had a long, shovel-shaped snout which may indicate a browsing lifestyle [138] |  |
| Tsintaosaurus | 1958 | Wangshi Group (Late Cretaceous, Campanian) | China | Originally mistakenly believed to have possessed a unicorn horn-like crest |  |
| Tugulusaurus | 1973 | Tugulu Group (Early Cretaceous, Barremian to Albian) | China | Potentially an early, Xiyunykus -grade alvarezsaurian [139] | |
| Tuojiangosaurus | 1977 | Shaximiao Formation (Late Jurassic, Oxfordian to Kimmeridgian) | China | Possessed two rows of tall, pointed plates, thickened in the center as if they were modified spikes |  |
| Turanoceratops | 1989 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | Had a pair of brow horns like ceratopsids but was likely not a member of that family |  |
| Tylocephale | 1974 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Only known from a partial skull but it is enough to tell that it had a remarkably tall dome |  |
| Tyrannomimus | 2023 | Kitadani Formation (Early Cretaceous, Aptian) | Japan | Its ilium is remarkably similar to that of the supposed tyrannosauroid Aviatyrannis |  |
| Udanoceratops | 1992 | Djadochta Formation (Late Cretaceous, Campanian) | Mongolia | The largest known leptoceratopsid |  |
| Ultrasaurus | 1983 | Gugyedong Formation (Early Cretaceous, Aptian to Albian) | South Korea | Described as very large but this may be due to misidentification of a bone | |
| Ulughbegsaurus | 2021 | Bissekty Formation (Late Cretaceous, Turonian) | Uzbekistan | A 2022 study suggested this taxon could be a large-bodied dromaeosaurid, [140] although the discovery of a maxilla similar to the holotype supports its classification as a carcharodontosaurian as originally described [141] |  |
| Urbacodon | 2007 | Bissekty Formation, Dzharakuduk Formation, Iren Dabasu Formation (Late Cretaceous, Cenomanian to Turonian) | China
Uzbekistan | The U. itemirensis holotype preserves a gap separating the eight rear teeth from the rest of its teeth |  |
| Vayuraptor | 2019 | Sao Khua Formation (Early Cretaceous, Barremian) | Thailand | Potentially ancestral to megaraptorans [142] or an early member of the group [143] | |
| Velociraptor | 1924 | Bayan Mandahu Formation, Djadochta Formation (Late Cretaceous, Campanian) | China
Mongolia | One potential specimen preserves quill knobs [144] |  |
| Wakinosaurus | 1992 | Sengoku Formation (Early Cretaceous, Valanginian to Barremian) | Japan | May be a close relative of Acrocanthosaurus [115] | |
| Wannanosaurus | 1977 | Xiaoyan Formation (Late Cretaceous, Maastrichtian) | China | Basal for a pachycephalosaur as indicated by its flat skull with large openings |  |
| Wuerhosaurus | 1973 | Ejinhoro Formation, Tugulu Group (Early Cretaceous, Hauterivian) | China | One of the last and largest known stegosaurs. Preserved with low rectangular plates but these may be broken |  |
| Wulagasaurus | 2008 | Yuliangze Formation (Late Cretaceous, Maastrichtian) | China | A rare hadrosaurid known from far less remains than the contemporary Sahaliyania |  |
| Wulatelong | 2013 | Bayan Mandahu Formation (Late Cretaceous, Campanian) | China | Known from a partial skeleton including some parts of the skull |  |
| Wulong | 2020 | Jiufotang Formation (Early Cretaceous, Aptian) | China | Analysis of preserved melanosomes suggests it was mostly gray with iridescent wings [145] |  |
| Xianshanosaurus | 2009 | Haoling Formation (Early Cretaceous, Aptian to Albian) | China | May have been closely related to Daxiatitan [97] |  |
| Xiaosaurus | 1983 | Shaximiao Formation (Middle Jurassic, Bajocian to Callovian) | China | An ornithischian of uncertain affinities | |
| Xiaotingia | 2011 | Tiaojishan Formation (Middle Jurassic to Late Jurassic, Bathonian to Oxfordian) | China | Well-preserved but inconsistent in phylogenetic placement. Some studies suggest a position as an early avialan [146] |  |
| Xingtianosaurus | 2019 | Yixian Formation (Early Cretaceous, Barremian) | China | Retained the large third finger that was lost in other caudipterids |  |
| Xingxiulong | 2017 | Lufeng Formation (Early Jurassic, Hettangian) | China | Two species are known, with the recently described X. yueorum being considerably larger than the type species X. chengi |  |
| Xinjiangovenator | 2005 | Tugulu Group (Early Cretaceous, Valanginian to Albian) | China | Remains originally identified as Phaedrolosaurus |  |
| Xinjiangtitan | 2013 | Qiketai Formation (Middle Jurassic, Callovian) | China | Had an extremely long neck |  |
| Xiongguanlong | 2009 | Xinminbao Group, (Early Cretaceous, Aptian) | China | More robust than other early tyrannosauroids, possibly to support its elongated skull |  |
| Xixianykus | 2010 | Majiacun Formation (Late Cretaceous, Coniacian to Santonian) | China | One of the smallest known non-avian dinosaurs |  |
| Xixiasaurus | 2010 | Majiacun Formation (Late Cretaceous, Coniacian to Campanian) | China | Distinguished from other troodontids by its possession of exactly twenty-two teeth in each maxilla |  |
| Xixiposaurus | 2010 | Lufeng Formation (Early Jurassic, Hettangian to Toarcian) | China | Poorly known | |
| Xiyunykus | 2018 | Tugulu Group (Early Cretaceous, Barremian to Aptian) | China | Had an unspecialized hand morphology for an alvarezsaur, having three fingers of roughly equal length and construction |  |
| Xuanhanosaurus | 1984 | Shaximiao Formation (Middle Jurassic, Bathonian) | China | Originally mistakenly believed to have been capable of quadrupedal locomotion |  |
| Xuanhuaceratops | 2006 | Houcheng Formation (Late Jurassic, Tithonian) | China | Possessed a large premaxillary tooth right behind its beak |  |
| Xunmenglong | 2019 | Huajiying Formation (Early Cretaceous, Hauterivian) | China | The holotype was originally presented as part of a chimera involving three different animals [147] |  |
| Xuwulong | 2011 | Xinminbao Group (Early Cretaceous, Aptian to Albian) | China | The tip of its dentary was V-shaped when viewed from the side |  |
| Yamaceratops | 2006 | Javkhlant Formation (Late Cretaceous, Santonian) | Mongolia | Possessed a short, stubby frill |  |
| Yamatosaurus | 2021 | Kita-Ama Formation (Late Cretaceous, Maastrichtian) | Japan | Basal yet survived late enough to be contemporaneous with more advanced hadrosaurids |  |
| Yanbeilong | 2024 | Zuoyun Formation (Early Cretaceous, Albian) | China | One of the youngest known stegosaurs [148] |  |
| Yandusaurus | 1979 | Shaximiao Formation (Middle Jurassic, Bathonian) | China | Some fossils were destroyed by a composter before they could be studied [149] |  |
| Yangchuanosaurus | 1978 | Shaximiao Formation (Middle Jurassic to Late Jurassic, Bathonian to Tithonian) | China | The largest theropod known from the Shaximiao Formation |  |
| Yi | 2015 | Tiaojishan Formation (Middle Jurassic to Late Jurassic, Callovian to Oxfordian) | China | Possessed a "styliform element" jutting out from its wrist that supported a bat-like membranous wing |  |
| Yimenosaurus | 1990 | Fengjiahe Formation (Early Jurassic, Pliensbachian) | China | Much of its skeleton is known, including the entirety of the skull |  |
| Yingshanosaurus | 1994 | Shaximiao Formation (Middle Jurassic, Bathonian) | China | Possessed greatly enlarged shoulder spines |  |
| Yinlong | 2006 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Its skull displays features of ceratopsians, pachycephalosaurs and heterodontosaurids |  |
| Yixianosaurus | 2003 | Yixian Formation (Early Cretaceous, Aptian) | China | Inconsistent in phylogenetic placement. Had extremely elongated manual elements |  |
| Yizhousaurus | 2018 | Lufeng Formation (Early Jurassic, Sinemurian) | China | Its skull was very similar to those of sauropods despite being more primitive |  |
| Yongjinglong | 2014 | Hekou Group (Early Cretaceous, Albian) | China | Possessed an extremely long, broad scapula |  |
| Yuanmousaurus | 2006 | Zhanghe Formation (Middle Jurassic, Aalenian to Callovian) | China | Shares features of its vertebrae with Patagosaurus |  |
| Yuanyanglong | 2025 | Miaogou Formation (Early Cretaceous, Aptian to Albian) | China | The only Early Cretaceous oviraptorosaur known from the Gobi Desert |  |
| Yueosaurus | 2012 | Liangtoutang Formation (Early Cretaceous to Late Cretaceous, Albian to Cenomanian) | China | Probably closely related to Jeholosaurus [150] |  |
| Yulong | 2013 | Qiupa Formation (Late Cretaceous, Maastrichtian) | China | Known from multiple specimens, most of which are juveniles |  |
| Yunganglong | 2013 | Zhumapu Formation (Late Cretaceous, Cenomanian) | China | Discovered 50 kilometres (31 mi) away from a World Heritage Site |  |
| Yunmenglong | 2013 | Haoling Formation (Early Cretaceous, Barremian to Albian) | China | May have been exceptionally large | |
| Yunnanosaurus | 1942 | Fengjiahe Formation, Lufeng Formation (Early Jurassic, Sinemurian to Pliensbachian) | China | Its teeth were self-sharpening similar to those of sauropods, likely through convergent evolution [151] |  |
| Yunyangosaurus | 2020 | Xintiangou Formation (Middle Jurassic, Aalenian to Callovian) | China | Potentially an early megalosauroid | |
| Yutyrannus | 2012 | Yixian Formation (Early Cretaceous, Aptian) | China | The largest known dinosaur to preserve direct evidence of feathers |  |
| Yuxisaurus | 2022 | Fengjiahe Formation (Early Jurassic, Sinemurian to Toarcian) | China | Had more than one hundred osteoderms |  |
| Yuzhoulong | 2022 | Shaximiao Formation (Middle Jurassic, Bathonian) | China | One of the oldest known macronarians |  |
| Zanabazar | 2009 | Nemegt Formation (Late Cretaceous, Maastrichtian) | Mongolia | Originally named as a species of Saurornithoides . Relatively large for a troodontid |  |
| Zaraapelta | 2014 | Barun Goyot Formation (Late Cretaceous, Campanian) | Mongolia | Had an intricate pattern of osteoderms on its skull | |
| Zhanghenglong | 2014 | Majiacun Formation (Late Cretaceous, Santonian) | China | Reconstructed by its describers with a straight, rectangular back, although no complete neural spines are known [152] |  |
| Zhejiangosaurus | 2007 | Chaochuan Formation (Late Cretaceous, Cenomanian) | China | Has no diagnostic features [38] |  |
| Zhenyuanlong | 2015 | Yixian Formation (Early Cretaceous, Aptian) | China | Possessed large wings with long feathers, but was most likely flightless |  |
| Zhongjianosaurus | 2017 | Yixian Formation (Early Cretaceous, Barremian to Aptian) | China | Distinguishable by its characteristically elongated legs. Described as a microraptorian [153] but it has been noted that some features of its skeleton are similar to avialans [41] |  |
| Zhuchengceratops | 2010 | Wangshi Group (Late Cretaceous, Maastrichtian) | China | Had a particularly deep mandible |  |
| Zhuchengtitan | 2017 | Wangshi Group (Late Cretaceous, Campanian) | China | The proportions of its humerus suggest a close relationship with Opisthocoelicaudia [154] |  |
| Zhuchengtyrannus | 2011 | Wangshi Group (Late Cretaceous, Campanian) | China | Closely related to Tarbosaurus and Tyrannosaurus |  |
| Zigongosaurus | 1976 | Shaximiao Formation (Middle Jurassic to Late Jurassic, Bathonian to Tithonian) | China | May be a species of Mamenchisaurus [155] | |
| Zizhongosaurus | 1983 | Ziliujing Formation (Early Jurassic, Toarcian) | China | Poorly known but was most likely basal for a sauropod | |
| Zuolong | 2010 | Shishugou Formation (Late Jurassic, Oxfordian) | China | Known from both cranial and postcranial remains |  |
| Zuoyunlong | 2017 | Zhumapu Formation (Late Cretaceous, Cenomanian) | China | May have been close to the separation between North American and Asian hadrosauroids [156] |  |
Mongolia 
China 
Japan 
Kyrgyzstan 
Russia 
Kazakhstan 
Uzbekistan 
Pakistan 
South Korea?
Laos 
Thailand 
Tajikistan 
