View source for Bayan Mandahu Formation

{{Short description|Geological formation in China}}
{{redirect|Wulansuhai Formation|the Turonian formation|Ulansuhai Formation}}
{{Infobox rockunit
| name           = Bayan Mandahu Formation
| image          =File:Mass_grave_of_juvenile_dinosaurs_-_Bayanmanduhu,_Gobi_Desert,_1988.jpg
| caption        =
| type           = [[Geological formation]]
| age            = [[Campanian]], {{fossilrange|75|71|earliest=84}}
| period         = Campanian
| prilithology   = [[Sandstone]]
| otherlithology =
| namedfor       = Bayan Mandahu, [[Urad Rear Banner]], Inner Mongolia
| namedby        =
| region         = [[Inner Mongolia]]
| country        = {{flag|China}}
| coordinates    = 41.75N 106.75E
| unitof         = [[Gobi Desert]]
| subunits       =
| underlies      =
| overlies       =
| thickness      =
| extent         =
| area           =
| map            =
| map_caption    =
}}
The '''Bayan Mandahu Formation''' (also known as '''Wulansuhai Formation''' or '''Wuliangsuhai Formation''') is a [[geological]] unit of "redbeds" located near the village of Bayan Mandahu in [[Inner Mongolia]], China, in the [[Gobi Desert]]. It dates from the late [[Cretaceous]] [[Period (geology)|Period]]. Laid down in the [[Campanian]], it is dated somewhat uncertainly to between 75 and 71 mya ([[million years ago]]).<ref name=PGetal2008>{{cite journal |last=Godefroit |first=Pascal |author2=Currie, Philip J. |author3=Li Hong |author4=Shang Chang Yong |author5= Dong Zhi-ming  |year=2008 |title=A new species of ''Velociraptor'' (Dinosauria: Dromaeosauridae) from the Upper Cretaceous of northern China |journal=Journal of Vertebrate Paleontology |volume=28 |issue=2 |pages=432–438 |doi=10.1671/0272-4634(2008)28[432:ANSOVD]2.0.CO;2}}</ref>

== Description ==
The paleoenvironment it preserves was semi-[[arid]] and characterized by [[Alluvium|alluvial]] (stream-deposited) and [[Aeolian processes|eolian]] (wind-deposited) sediments. The formation is known for its [[vertebrate]] fossils, most of which are preserved in unstructured sandstone, indicating burial by wind-blown [[Dust storm|sandstorms]].<ref name=jerzykiewiczetal1993>{{cite journal|last1=Jerzykiewicz|first1=T.|last2=Currie|first2=P. J.|last3=Eberth|first3=D. A.|last4=Johnston|first4=P. A.|last5=Koster|first5=E. H.|last6=Zheng|first6=J.-J.|date=1993|title=Djadokhta Formation correlative strata in Chinese Inner Mongolia: an overview of the stratigraphy, sedimentary geology, and paleontology and comparisons with the type locality in the pre-Altai Gobi|journal=Canadian Journal of Earth Sciences|volume=30|number=10|pages=2180−2195|bibcode=1993CaJES..30.2180J|doi=10.1139/e93-190|url=https://www.researchgate.net/publication/237174446}}</ref>

== Paleofauna of the Bayan Mandahu Formation ==
The [[fauna]] of the Bayan Mandahu is very similar in composition to the nearby [[Djadochta Formation]], and the two may have been deposited at roughly the same time. These two formations share many of the same [[Genus|genera]], but differ in the makeup of [[species]]. For example, the most common mammal in the Djadochta is ''[[Kryptobaatar dashzevegi]]'', while in the Bayan Mandahu, it is the closely related ''[[Kryptobaatar mandahuensis]]''. Similarly, the dinosaur fauna of the Djadochta includes ''[[Protoceratops andrewsi]]'' and ''[[Velociraptor mongoliensis]]'', while the Bayan Mandahu contains ''[[Protoceratops hellenikorhinus]]'' and ''[[Velociraptor osmolskae]]''.<ref name="PGetal2008"/>

{{Paleobiota-key-compact}}

=== Crocodylomorphs ===
{| class="wikitable" align="center" width="100%"
|-
! colspan="7" align="center" |'''[[Crocodylomorph]]s of the Bayan Mandahu Formation'''
|-
! Genus
! Species
! Location
! Material
! Notes
! Images
|-
| ''[[Shamosuchus]]''<ref name=jerzykiewiczetal1993/>
|
|
|
| A [[mesoeucrocodylia]]n.
|
|-
|}

=== Lizards ===
An [[amphisbaenia]]n species is known from the formation.<ref name=jerzykiewiczetal1993/> An [[iguania]]n species is known from the formation.<ref name=jerzykiewiczetal1993/>

{| class="wikitable" align="center" width="100%"
|-
! colspan="7" align="center" |'''[[Lizard]]s of the Bayan Mandahu Formation'''
|-
! Genus
! Species
! Location
! Material
! Notes
! Images
|-
| ''[[Adamisaurus]]''<ref name=jerzykiewiczetal1993/>
| ''A. magnidentatus''<ref name=jerzykiewiczetal1993/>
|
|
| An [[agamid]].
|
|-
| ''[[Bainguis]]''<ref name=jerzykiewiczetal1993/>
|
|
|
| A [[diploglossa]]n.
|
|-
| ''[[Telmasaurus]]''<ref name=jerzykiewiczetal1993/>
|
|
|
| A [[monitor lizard]].
|
|-
|}

=== Turtles ===
{| class="wikitable" align="center" width="100%"
|-
! colspan="7" align="center" |'''[[Turtle]]s of the Bayan Mandahu Formation'''
|-
! Genus
! Species
! Location
! Material
! Notes
! Images
|-
| ''[[Basilemys]]''<ref name=jerzykiewiczetal1993/>
|
|
|
| A [[Trionychia|softshell turtle]].
|
|-
| ''"[[Zangerlia]]"''
| ''"Z." neimongolensis''
| Bayan Mandahu
| "Partial to complete skeletons of multiple individuals."<ref>{{cite journal|last1=Brinkman|first1=D. B.|last2=Tong|first2=H.-Y.|last3=Li|first3=H.|last4=Sun|first4=Y.|last5=Zhang|first5=J.-S.|last6=Godefroit|first6=P.|last7=Zhang|first7=Z.-M.|date=2015|title=New exceptionally well-preserved specimens of "Zangerlia" neimongolensis from Bayan Mandahu, Inner Mongolia, and their taxonomic significance|journal=Comptes Rendus Palevol|volume=14|issue=6–7|pages=577−587|doi=10.1016/j.crpv.2014.12.005|doi-access=free|bibcode=2015CRPal..14..577B }}</ref>
| A [[nanhsiungchelyid]].
| [[File:Zangerlia Neimongolensis.jpg|200px]]
|-
|}

=== Mammals ===
A [[taeniolabidoidea]] multituberculate is known from the formation.<ref name=jerzykiewiczetal1993/>

{| class="wikitable" align="center" width="100%"
|-
! colspan="7" align="center" |'''[[Mammal]]s of the Bayan Mandahu Formation'''
|-
! Genus
! Species
! Location
! Material
! Notes
! Images
|-
| ''[[Guibaatar]]''<ref>{{cite journal |author1=John R. Wible |author2=Sarah L. Shelley |author3=Shundong Bi |year=2019 |title=New Genus and Species of Djadochtatheriid Multituberculate (Allotheria, Mammalia) from the Upper Cretaceous Bayan Mandahu Formation of Inner Mongolia |journal=Annals of Carnegie Museum |volume=85 |issue=4 |pages=285–327 |doi=10.2992/007.085.0401 |s2cid=210840006 |url=https://www.researchgate.net/publication/338202993}}</ref>
| ''G. castellanus''
| 
|
|  A [[Djadochtatheriidae|djadochtatheriid]] [[Multituberculata|multituberculate]].
|
|-
| ''[[Kennalestes]]''<ref name=jerzykiewiczetal1993/>
| ''K. gobiensis''<ref name=jerzykiewiczetal1993/>
| 
|
| A [[Eutheria|placental]]. Also present in the [[Djadochta Formation]].
|
|-
| ''[[Kryptobaatar]]''<ref name=PGetal2008/>
| ''K. mandahuensis''
| 
|
| A [[multituberculate]].
|
|-
|}

===Dinosaurs===

====Alvarezsaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| [[Alvarezsauridae]] indet.<ref name=Pittman2015/>
| Indeterminate<ref name=Pittman2015/>
| Bayan Mandahu<ref name=Pittman2015/>
| An articulated series of partial anterior cervical vertebrae, an anterior cervical vertebra, isolated fragmentary anterior caudal vertebrae, a partial scapula, and pedal phalanges.<ref name=Pittman2015>{{cite journal|last1=Pittman|first1=M.|last2=Xu|first2=X.|last3=Stiegler|first3=J. B.|date=2015|title=The taxonomy of a new parvicursorine alvarezsauroid specimen IVPP V20341 (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia, China|journal=PeerJ|volume=3|pages=e986|doi=10.7717/peerj.986|doi-access=free|pmc=4465946|pmid=26082871}}</ref>
| An unnamed parvicursorine [[alvarezsaurid]].<ref name=Pittman2015/>
| [[File:Alvarezsaurid IVPP V20341 cervical vertebrae.png|200px]]
|-
| ''[[Linhenykus]]''
| ''L. monodactylus''<ref name=Xetal11/>
| Wuliangsuhai <ref name=Xetal11/>
| Cervical vertebrae, dorsal vertebrae, sacral vertebrae, caudal vertebrae, a scapulocoracoid, a sternum, much of the forelimbs, a partial pelvis, nearly complete hindlimbs, and some unidentified fragments.<ref name=Xetal11>{{cite journal |last=Xu |first=Xing |author2=Sullivan, Corwin |author3=Pittman, Michael |author4=Choiniere, Jonah N. |author5=Hone, David W.E. |author6=Upchurch, Paul |author7=Tan, Qingwei |author8=Xiao, Dong |author9= Lin, Tan |author10= Han Fenglu |year=2011 |title=A monodactyl nonavian dinosaur and the complex evolution of the alvarezsauroid hand |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=108 |issue=6 |pages=2338–2342 |doi=10.1073/pnas.1011052108 |pmid=21262806 |pmc=3038769|bibcode=2011PNAS..108.2338X |doi-access=free }}</ref>
| A monodactyl parvicursorine [[Alvarezsauridae|alvarezsaurid]].<ref name=Xetal11/>
| [[File:Linhenykus monodactylus cropped.jpg|center|200px]]
|-
|}

====Ankylosaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| rowspan="2" |''[[Pinacosaurus]]''
| ''P. grangeri''<ref name=Burns2011/>
| Bayan Mandahu<ref name=Burns2011/>
| [Four] juvenile specimens consisting of skulls, manidibles, cervical half-rings and almost complete skeletons, and an incomplete subadult skull.<ref name=Burns2011>{{cite journal|last1=Burns|first1=Michael|last2=Arbour|first2=Victoria|last3=Sissons|first3=Robin|last4=Currie|first4=Philip|title=Juvenile specimens of Pinacosaurus grangeri Gilmore, 1933 (Ornithischia: Ankylosauria) from the Late Cretaceous of China, with comments on the specific taxonomy of ''Pinacosaurus''|journal=Cretaceous Research|date=2011|volume=32|issue=2011|pages=174–186|doi=10.1016/j.cretres.2010.11.007|bibcode=2011CrRes..32..174B }}</ref>
| A basal [[Ankylosaurinae|ankylosaurine]] [[Ankylosauridae|ankylosaurid]] also known from the [[Djadochta Formation]].
| [[File:Pinacosaurus Jack Wood 2017 flipped transparent.png|center|200px]]
|-
| ''P. mephistocephalus''<ref name=Godefroit1999/>
| Bayan Mandahu<ref name=Godefroit1999/>
| A nearly complete articulated skeleton, with ''in situ'' cervical dermal armour and tail-club, that lies in a natural with limb bones doubled under the body.<ref name=Godefroit1999>{{cite journal|last1=Godefroit|first1=P.|last2=Pereda-Suberbiola|first2=X.|last3=Li|first3=H.|last4=Dong|first4=Z. M.|date=1999|title=A new species of the ankylosaurid dinosaur Pinacosaurus from the Late Cretaceous of Inner Mongolia (P.R. China)|journal=Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre|volume=69|issue=supp. B|pages=17–36|url=http://biblio.naturalsciences.be/rbins-publications/bulletin-of-the-royal-belgian-institute-of-natural-sciences-earth-sciences/69-sup-b-1999/bulletin69supb-article2.pdf}}</ref>
| A basal [[Ankylosaurinae|ankylosaurine]] [[Ankylosauridae|ankylosaurid]].
| [[File:PinacosaurusDB154.jpg|center|200px]]
|-
|}

====Birds====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| cf. ''[[Gobipteryx]]''
| Indeterminate
|
| "Eggs similar to those attributed to ''Gobipteryx minuta'' from the [[Djadochta Formation]]."<ref name=jerzykiewiczetal1993/>
|
|
|-
|}

==== Ceratopsians ====
{| class="wikitable" align="center" width="100%"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
! Genus
! Species
! Location
! Material
! Notes
! Images
|-
| ''[[Bagaceratops]]''
| ''B. rozhdestvenskyi''
| Bayan Mandahu
| A partial skull.<ref name="Czepinski2019">{{cite journal|last1=Czepiński|first1=Ł.|date=2019|title=Ontogeny and variation of a protoceratopsid dinosaur ''Bagaceratops rozhdestvenskyi'' from the Late Cretaceous of the Gobi Desert|url=http://dinosaurmailinglist.cmnh.org/2019Apr/pdfzmfpMk1aO4.pdf|journal=Historical Biology|volume=32|issue=10|pages=1394–1421|doi=10.1080/08912963.2019.1593404|s2cid=132780322|access-date=2021-03-03|archive-date=2021-07-08|archive-url=https://web.archive.org/web/20210708144840/http://dinosaurmailinglist.cmnh.org/2019Apr/pdfzmfpMk1aO4.pdf|url-status=dead}}</ref>
| A [[protoceratopsid]] also known from the [[Barun Goyot Formation]] and possibly the [[Djadochta Formation]].
| [[File:Bagaceratops Restoration.png|200px]]
|-
|style="background:#e6e6e6;" | ''[[Magnirostris]]''<ref name=PGetal2008/>
|style="background:#e6e6e6;" | ''M. dodsoni''<ref name=PGetal2008/>
|style="background:#e6e6e6;" | Bayan Mandahu<ref name="Longrichetal10"/>
|style="background:#e6e6e6;" | A partial skull.
|style="background:#e6e6e6;" | A [[protoceratopsid]] now considered synonym of ''Bagaceratops''.<ref name=Czepinski2019/>
|style="background:#e6e6e6;" | 
|-
| ''[[Protoceratops]]''
| ''P. hellenikorhinus''<ref name=Lambert2001/>
| Bayan Mandahu<ref name=Lambert2001/>
| Skulls and sparse body remains from multiple individuals.<ref>{{cite journal| vauthors = Chen X, Tan K, Lu L, Ji S |title=Occurrence of ''Protoceratops hellenikorhinus'' (Ceratopsia: Protoceratopsidae) in Alxa region, western Inner Mongolia, China |year=2022 |journal=Acta Geologica Sinica |volume=96 |issue=11 |pages=3722–3732 |doi=10.19762/j.cnki.dizhixuebao.2022302 |url= http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=2022427}}</ref><ref name=Lambert2001>{{cite journal|last1=Lambert|first1=O.|last2=Godefroit|first2=P.|last3=Li|first3=H.|last4=Shang|first4=C.-Y.|last5=Dong|first5=Z.|date=2001|title=A new Species of Protoceratops (Dinosauria, Neoceratopsia) from the Late Cretaceous of Inner Mongolia (P. R. China)|journal=Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre|volume=71|pages=5−28|url=http://biblio.naturalsciences.be/rbins-publications/bulletin-of-the-royal-belgian-institute-of-natural-sciences-earth-sciences/71-sup-2001/irscnb_p4087_01ec08x_71-sup_bulletin-1.pdf}}</ref>
| A [[protoceratopsid]].
| [[File:Protoceratops hellenikorhinus Restoration.png|center|200px]]
|-
|style="background:#f3e9f3;" | <small>''[[Udanoceratops]]''?</small>
|style="background:#f3e9f3;" | Indeterminate
|style="background:#f3e9f3;" | Bayan Mandahu
|style="background:#f3e9f3;" | "Nearly 1 meter long skull."<ref name=jerzykiewiczetal1993/>
|style="background:#f3e9f3;" | A giant [[leptoceratopsid]]. Reported remains probably represent ''Protoceratops hellenikorhinus''.<ref>{{cite journal|last1=Czepiński|first1=Ł.|date=2020|title=New protoceratopsid specimens improve the age correlation of the Upper Cretaceous Gobi Desert strata|journal=Acta Palaeontologica Polonica|volume=65|issue=3|pages=481−497|doi=10.4202/app.00701.2019|doi-access=free|url=http://www.app.pan.pl/archive/published/app65/app007012019.pdf}}</ref>
|style="background:#f3e9f3;" | 
|-
|}

====Dromaeosaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| ''[[Linheraptor]]''<ref name=xuhoneetal2010 />
| ''L. exquisitus''<ref name="xuhoneetal2010">{{Cite journal|last1=Xu|first1=Xing|last2=Choiniere|first2=Jonah N.|last3=Pittman|first3=Michael|last4=Tan|first4=Qingwei|last5=Xiao|first5=Dong|last6=Li|first6=Zhiquan|last7=Tan|first7=Lin|last8=Clark|first8=James M.|last9=Norell|first9=Mark A.|last10=Hone|first10=David W. E.|last11=Sullivan|first11=Corwin|date=2010-03-19|title=A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China|journal=Zootaxa|language=en|volume=2403|issue=1|pages=1–9|doi=10.11646/zootaxa.2403.1.1|issn=1175-5334|hdl=10722/154755|s2cid=15665202|hdl-access=free}}</ref>
| Wuliangsuhai<ref name=xuhoneetal2010 />
| A skull, cervical vertebrae, caudal vertebrae, a scapula, a humerus, a radius, metacarpals, manual phalanxes, sternal plate, a pubis, a femur, a tibiotarsus, metatarsals, and pedal phalanxes.<ref name=xuhoneetal2010 />
| A possible [[Velociraptorinae|velociraptorine]] [[dromaeosauridae|dromaeosaurid]].<ref name=xuhoneetal2010 />
| [[File:Linheraptor exquisitus.jpg|center|200px]]
|-
| ''[[Velociraptor]]''
| ''V. osmolskae''<ref name=PGetal2008b>{{cite journal |last1=Godefroit |first1=Pascal |last2=Currie |first2=Philip J. |last3=Li |first3=Hong |last4=Shang |first4=Chang Yong |last5=Dong |first5=Zhi-ming |year=2008 |title=A new species of ''Velociraptor'' (Dinosauria: Dromaeosauridae) from the Upper Cretaceous of northern China |journal=Journal of Vertebrate Paleontology |volume=28 |issue=2 |pages=432–438 |doi=10.1671/0272-4634(2008)28[432:ANSOVD]2.0.CO;2}}</ref>
| Bayan Mandahu<ref name="PGetal2008"/>
| A paired maxillae and left lacrimal.<ref name="PGetal2008"/>
| A [[Velociraptorinae|velociraptorine]] [[dromaeosauridae|dromaeosaurid]].<ref name="PGetal2008"/>
| [[File:Velociraptor Restoration.png|center|200px]]
|-
|}

====Hadrosaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| Undescribed [[Hadrosauridae]]<ref name="Longrichetal10">{{cite journal|author1=Nicholas R. Longrich |author2=Philip J. Currie |author3=Dong Zhi-Ming |year=2010 |title=A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia |journal=Palaeontology |volume=53 |issue=5 |pages=945–960 |doi=10.1111/j.1475-4983.2010.00968.x|doi-access=free |bibcode=2010Palgy..53..945L }}</ref>
| Indeterminate<ref name="Longrichetal10"/>
| Bayan Mandahu<ref name="Longrichetal10"/>
|
| A hadrosaurid.
|
|-
|}

====Oviraptorosaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| ''[[Machairasaurus]]''
| ''M. leptonychus''<ref name="Longrichetal10"/>
| Bayan Mandahu<ref name="Longrichetal10"/>
| A nearly complete articulated right forearm and manus, pedal phalanges, manual phalanges, caudal vertebrae, dorsal ribs, chevrons, and fragments of metatarsals III and IV.<ref name="Longrichetal10"/>
| A heyuanniine [[oviraptorid]].<ref name="Longrichetal10"/>
| [[File:Machairasaurus.jpg|center|200px]]
|-
| [[Oviraptoridae]] indet.
| Indeterminate
| Bayan Mandahu
| "Partial individual sitting atop an egg clutch."<ref>{{cite journal|last1=Dong|first1=Z.|last2=Currie|first2=P. J.|date=1996|title=On the discovery of an oviraptorid skeleton on a nest of eggs at Bayan Mandahu, Inner Mongolia, People's Republic of China|journal=Canadian Journal of Earth Sciences|volume=33|issue=4|pages=631−636|bibcode=1996CaJES..33..631D|doi=10.1139/e96-046}}</ref>
| An [[oviraptorid]] that represent the second nesting oviraptorid. Sometimes referred to ''Machairasaurus''.<ref name="Longrichetal10"/><ref>{{cite journal|last1=Fanti|first1=F.|last2=Currie|first2=P. J.|last3=Badamgarav|first3=D.|last4=Lalueza-Fox|first4=C.|date=2012|title=New specimens of Nemegtomaia from the Baruungoyot and Nemegt Formations (Late Cretaceous) of Mongolia|journal=PLOS ONE|volume=7|issue=2|pages=e31330|bibcode=2012PLoSO...731330F|doi=10.1371/journal.pone.0031330|doi-access=free|pmc=3275628|pmid=22347465}}</ref>
|
|-
| ''[[Wulatelong]]''
| ''W. gobiensis''<ref name=Wulatelong>{{Cite journal|author=Xu Xing|author2=Tan Qing-Wei|author3=Wang Shuo|author4=Corwin Sullivan|author5=David W. E. Hone|author6=Han Feng-Lu|author7=Ma Qing-Yu|author8=Tan Lin|author9=Xiao Dong|name-list-style=amp |year=2013 |title=A new oviraptorid from the Upper Cretaceous of Nei Mongol, China, and its stratigraphic implications |journal=Vertebrata PalAsiatica |volume=51 |issue=2 |pages=85–101 |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201305/P020130507385115746165.pdf }}</ref>
| Wuliangsuhai<ref name="Wulatelong"/>
| A partial skull, dorsal vertebrae, caudal vertebrae, partial scapulocoracoids, a partial sternum, a partial humerus, an incomplete manus, a nearly complete pelvic girdle, and the right hindlimb.<ref name="Wulatelong"/>
| A basal [[oviraptoridae|oviraptorid]] [[oviraptorosaur]].<ref name="Wulatelong"/>
|
|-
|}

====Sauropods====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| Undescribed [[Sauropoda]]<ref name="Longrichetal10"/>
| Indeterminate<ref name="Longrichetal10"/>
| Bayan Mandahu<ref name="Longrichetal10"/>
|
| A [[sauropod]].
|
|-
|}

====Troodontids====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| ''[[Linhevenator]]''<ref name="linhevenator">{{Cite journal|last1=Xu|first1=Xing|last2=Tan|first2=Qingwei|last3=Sullivan|first3=Corwin|last4=Han|first4=Fenglu|last5=Xiao|first5=Dong|date=2011-09-07|title=A Short-Armed Troodontid Dinosaur from the Upper Cretaceous of Inner Mongolia and Its Implications for Troodontid Evolution|journal=PLOS ONE|volume=6|issue=9|pages=e22916|doi=10.1371/journal.pone.0022916|issn=1932-6203|pmc=3168428|pmid=21915256|bibcode=2011PLoSO...622916X|doi-access=free}}</ref>
| ''L. tani''<ref name=linhevenator />
| Wuliangsuhai<ref name=linhevenator />
|A skull and mandible, anterior dorsal vertebrae, middle dorsal vertebrae, a scapula, a humerus, incomplete ischia, a femur, nearly complete pes, and other fragmentary bones.<ref name="linhevenator"/>
| A [[troodontid]] with short forearms.<ref name=linhevenator />
| [[File:Linhevenator Reconstruction.png|center|200px]]
|-
| ''[[Papiliovenator]]''
| ''P. neimengguensis''<ref name="Pei2021"/>
| Bayan Mandahu<ref name="Pei2021"/>
| An almost complete skull, cervical vertebrae, anterior dorsal vertebrae, partial scapulae, partial coracoid, fragmentary pelvic girdle, partial humeri, ulna, radius, partial manus, femur, tibia, fibula, pes, and a pedal phalanx II-3.<ref name="Pei2021">{{cite journal |last1=Pei |first1=R. |last2=Qin |first2=Yuying |last3=Wen |first3=Aishu |last4=Zhao |first4=Q. |last5=Wang |first5=Z. |last6=Liu |first6=Z. |last7=Guo |first7=W. |last8=Liu |first8=P. |last9=Ye |first9=W. |last10=Wang |first10=L. |last11=Yin |first11=Z. |last12=Dai |first12=R. |last13=Xu|first13=X. |year=2021 |title=A New Troodontid from the Upper Cretaceous Gobi Basin of Inner Mongolia, China |journal=Cretaceous Research |volume=130 |pages=Article 105052 |doi=10.1016/j.cretres.2021.105052|s2cid=244186762 }}</ref>
| A [[Troodontidae|troodontid]] that is part of a clade that includes all other Late Cretaceous troodontids except ''[[Almas ukhaa|Almas]]''.<ref name="Pei2021"/>
| [[File:Papiliovenator Life Restoration.png|center|200px]]
|-
| ''[[Philovenator]]''
| ''P. curriei''<ref name="xuetal12">{{cite journal |author1=Xu Xing |author2=Zhao Ji |author3=Corwin Sullivan |author4=Tan Qing-Wei |author5=Martin Sander |author6=Ma Qing-Yu |year=2012 |title=The taxonomy of the troodontid IVPP V 10597 reconsidered |journal=Vertebrata PalAsiatica |volume=50 |issue=2 |pages=140–150 |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201204/P020120423369968204026.pdf}}</ref>
| Wuliangsuhai<ref name="xuetal12"/>
|A nearly complete femur, a partial tibia, a partial fibula, astragalus-calcaneum complex, distal tarsals, metatarsals, and pedal phalanges.<ref name="xuetal12"/>
| A [[troodontid]].<ref name="xuetal12"/>
| [[File:Philovenator curriei life restoration..png|center|200px]]
|-
|}

====Tyrannosaurs====
{| class="wikitable sortable"
|-
! Genus !! Species !! Location !! Material !! Notes !! Images
|-
| Undescribed [[Tyrannosauridae]]<ref name="Longrichetal10"/>
| Indeterminate<ref name="Longrichetal10"/>
| Bayan Mandahu<ref name="Longrichetal10"/>
|
| A [[tyrannosaurid]].
|
|-
|}

== See also ==
{{portal|China|Paleontology}}
* [[Barun Goyot Formation]]
* [[List of fossil sites]] (with link directory)
* [[Nemegt Formation]]
* [[List of dinosaur-bearing rock formations]]

== References ==
{{Reflist}}

=== Bibliography ===
* {{citation |last1=Weishampel |first1=David B. |author2-link=Peter Dodson |last2=Dodson |first2=Peter |author3-link=Halszka Osmólska |last3=Osmólska |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21 |isbn=0-520-24209-2 |author1-link=David B. Weishampel }}

{{coord missing|Inner Mongolia}}

[[Category:Geologic formations of China]]
[[Category:Upper Cretaceous Series of Asia]]
[[Category:Campanian Stage]]
[[Category:Sandstone formations]]
[[Category:Aeolian deposits]]
[[Category:Fossiliferous stratigraphic units of Asia]]
[[Category:Paleontology in Inner Mongolia]]