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Barun Goyot Formation

January 01, 1970

The Barun Goyot Formation (also known as Baruungoyot Formation or West Goyot Formation) is a geological formation dating to the Late Cretaceous Period. It is located within and is widely represented in the Gobi Desert Basin, in the Ömnögovi Province of Mongolia.

Barun Goyot Formation
Stratigraphic range: Maastrichtian
~72–71 Ma
↓
Hermiin Tsav, a highly fossiliferous locality of the formation
TypeGeological formation
UnderliesNemegt Formation
OverliesDjadokhta Formation
Thicknessca. 110 m (360 ft)
Lithology
PrimarySandstone
Location
Coordinates43°30′N 99°48′E / 43.5°N 99.8°E / 43.5; 99.8
Approximate paleocoordinates40°30′N 89°30′E / 40.5°N 89.5°E / 40.5; 89.5
RegionOmnogov
Country Mongolia
ExtentGobi Desert
Barun Goyot Formation (Mongolia)

Description edit

 
Khulsan in 1970

It was previously known as the Lower Nemegt Beds occurring beneath the Nemegt Formation and above the Djadokhta Formation. It has been suggested that the Djadokhta and Barun Goyot Formations are lower and upper parts, respectively, of the same lithological unit and the boundary between the two does not exist. The stratotype of the Barun Goyot Formation is the Khulsan locality, east of Nemegt. At Nemegt, only the uppermost barungoyotian beds are visible. The Red Beds of Khermeen Tsav are also considered part of the Barun Goyot Formation. It is approximately 110 metres (360 ft) in thickness,[1] and was laid down roughly 72-71 million years ago. Given the new date for the start of the Maastrichtian (72.1 MYA) a basal Maastrichtian age seems probable. The Barun Goyot Formation preserves an environment of sand dunes, created from wind-eroded rocks (aeolian dunes).

Paleobiota of the Barun Goyot Formation edit

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Lizards edit

Genus Species Location Material Notes Images

Estesia

Estesia mongoliensis

An anguimorph

Gobiderma Gobiderma pulchrum A Monstersaur

Proplatynotia

Proplatynotia longirostrata

Mammals edit

Genus Species Location Material Notes Images
Asioryctes A. nemegtensis An eutherian.  
Barunlestes B. butleri An eutherian.  
Catopsbaatar C. catopsaloides A djadochtatheriid.  
Chulsanbaatar C. vulgaris A multituberculate.
Deltatheridium D. pretrituberculare A tribosphenid.
Nemegtbaatar N. gobiensis A multituberculate.  
Zofialestes Z. longidens A eutherian.

Dinosaurs edit

Ornithiscians edit

Ankylosaurs edit
Genus Species Location Material Notes Images
Saichania S. chulsanensis Hermiin Tsav II, Khulsan [Three] skulls, mandibles, cervical vertebrae, dorsal vertebrae, ribs, sternum, scapulocoracoids, humerus, ulna, radius, manus, cervical half-rings, and osteoderms.[2][3][4] An ankylosaurid also known from the Nemegt Formation.  
Tarchia T. kielanae Hermiin Tsav II, Khulsan [Two] partial skulls, osteoderms, and [three] undescribed specimens. [3][4] An ankylosaurid also known from a second species, T. teresae, which was found in the Nemegt Formation.  
Zaraapelta Z. nomadis Hermiin Tsav A partial skull missing the rostrum. [3] An ankylosaurid known from a subadult individual.
Ankylosauridae indet. Indeterminate Hermiin Tsav Dorsal vertebrae, ribs, pectoral girdles, forelimbs, pelvic girdles, hindlimbs, and osteoderms. [5] An ankylosaurid known from a specimen preserved in a "resting posture".  


Ceratopsians edit
Genus Species Location Material Notes Images
Bagaceratops B. rozhdestvenskyi Hermin Tsav, Khulsan "Multiple specimens with partial to nearly complete skulls and skeletons."[6][7][8] A protoceratopsid. Gobiceratops, Lamaceratops, and Platyceratops are now considered synonyms of Bagaceratops.[7]  
Breviceratops B. kozlowskii Khulsan "Two skulls and partial skeleton remains."[9][7] A protoceratopsid.  
Udanoceratops? Indeterminate Baga Tariach "Partial juvenile specimen."[10] A giant leptoceratopsid.  
Pachycephalosaurs edit
Genus Species Location Material Notes Images
Tylocephale T. gilmorei Khulsan "Partial skull."[11][12] A pachycephalosaurid.  

Sauropods edit

Genus Species Location Material Notes Images
Faveoloolithus F. ningxiaensis Hermiin Tsav, Ikh Shunkht, Ologoy Ulan Tsav "Eggs, egg clutches and shells."[13] Eggs probably laid by a sauropod.
Quaesitosaurus Q. orientalis Shar Tsav "Partial skull."[14] A titanosaur.  

Theropods edit

Alvarezsaurs edit
Genus Species Location Material Notes Images
Ceratonykus C. oculatus Hermiin Tsav "Partial skull with skeleton."[15][16] An alvarezsaurid.  
Jaculinykus J. yaruui Nemegt A nearly complete articulated skeleton including much of the skull[17] A parvicursorine alvarezsaurid.  
Khulsanurus K. magnificus Khulsan "Partial skeleton, including cervical and caudal vertebrae, scapulocoracoids, humerus, and pubis."[18] An alvarezsaurid.
Ondogurvel O. alifanovi Nemegt "Partial postcranial skeleton," including dorsal and sacral vertebrae and hip and leg bones.[19] An alvarezsaurid.  
Parvicursor P. remotus Khulsan "Partial vertebrae, pelvic girdle and hindlimbs."[20] An alvarezsaurid  
Birds edit
Genus Species Location Material Notes Images
Gobioolithus G. major Gilbent, Khulsan "Five eggs."[21] Eggs probably laid by a bird.
G. minor Hermiin Tsav, Khulsan "Eggs with embryonic remains."[22][21] Eggs probably laid by Gobipipus.[22][21]
Gobipipus G. reshetovi Hermiin Tsav, Khulsan "Embryonic skulls and skeletons."[22] An enantiornithine.
Gobipteryx G. minuta Hermiin Tsav, Khulsan "Skulls and partial skeletons, and embryonic remains."[23][24][25] An enantiornithine. Also present in the Djadokhta Formation.
Hollanda H. luceria Hermiin Tsav "Partial hindlimbs from several specimens."[26][27] An ornithuromorph.  
Protoceratopsidovum' P. fluxuosum Hermiin Tsav, Khulsan "Clutch of 19 eggs and isolated eggs."[28] Eggs probably laid by a bird.[21]
P. minimum Ikh Shunkht "Clutch of eggs."[28] Eggs probably laid by a bird.[21]
P. sincerum Hermiin Tsav "Partial egg."[28] Eggs probably laid by a bird.[21]
Styloolithus S. sabathi Khulsan "Partial eggs."[21] Eggs probably laid by a bird.
Dromaeosaurs edit
Genus Species Location Material Notes Images
Kuru K. kulla Khulsan "Fragmentary skeleton."[29] A dromaeosaurid.  
Shri S. devi Khulsan "Articulated skeleton lacking skull."[30] A dromaeosaurid.  
Velociraptorinae indet. Indeterminate Hermin Tsav, Khulsan Not specified.[31][32] A dromaeosaurid.
Halszkaraptorines edit
Genus Species Location Material Notes Images
Hulsanpes H. perlei Khulsan Partial foot and skull bone[33] A halszkaraptorine  
Natovenator N. polydontus Hermiin Tsav Partial articulated skeleton with skull[34] A halszkaraptorine  
Oviraptorosaurs edit
Genus Species Location Material Notes Images
Conchoraptor C. gracilis Hermin Tsav, Khulsan "Multiple specimens with skulls and partial skeletons."[35][36][37][38][39] An oviraptorid. Also present in the Nemegt Formation.  
Heyuannia H. yanshini Hermiin Tsav "Partial skulls and skeletons."[40][38][39] An oviraptorid. Originally identified as Ajancingenia and "Ingenia".  
Nemegtomaia N. barsboldi Nemegt "Nesting specimen."[41] An oviraptorid. Also present in the Nemegt Formation.  

Gallery edit

 
Panoramic view of the Hermiin Tsav locality of the Barun Goyot Formation
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See also edit

References edit

  1. ^ Gradzinski, R.; & Jerzykiewicz, T. (1974). Sedimentation of the Barun Goyot formation. Palaeontologica Polonica, 30, 111-146.
  2. ^ Carpenter, K., Hayashi, S., Kobayashi, Y., Maryańska, T., Barsbold, R., Sato, K., and Obata, I., 2011, "Saichania chulsanensis (Ornithischia, Ankylosauridae) from the Upper Cretaceous of Mongolia", Palaeontographica, Abteilung A, 294(1-3): 1-61
  3. ^ a b c Arbour, V. M.; Currie, P. J.; Badamgarav, D. (2014). "The ankylosaurid dinosaurs of the Upper Cretaceous Baruungoyot and Nemegt formations of Mongolia". Zoological Journal of the Linnean Society. 172 (3): 631−652. doi:10.1111/zoj.12185.
  4. ^ a b Penkalski, P.; Tumanova, T. (2017). "The cranial morphology and taxonomic status of Tarchia (Dinosauria: Ankylosauridae) from the Upper Cretaceous of Mongolia". Cretaceous Research. 70: 117−127. doi:10.1016/j.cretres.2016.10.004.
  5. ^ Park, J.-Y.; Lee, Y. N.; Currie, P. J.; Ryan, M. J.; Bell, P.; Sissons, R.; Koppelhus, E. B.; Barsbold, R.; Lee, S.; Kim, S.-H. (2021). "A new ankylosaurid skeleton from the Upper Cretaceous Baruungoyot Formation of Mongolia: its implications for ankylosaurid postcranial evolution". Scientific Reports. 11 (4101): 4101. doi:10.1038/s41598-021-83568-4. PMC 7973727. PMID 33737515.
  6. ^ Maryańska, T.; Osmólska, H. (1975). (PDF). Palaeontologia Polonica. 33: 134−143. Archived from the original (PDF) on 2018-09-21. Retrieved 2021-05-27.
  7. ^ a b c Czepiński, Ł. (2019). (PDF). Historical Biology. 32 (10): 1394–1421. doi:10.1080/08912963.2019.1593404. S2CID 132780322. Archived from the original (PDF) on 2021-07-08. Retrieved 2021-05-27.
  8. ^ Kim, B.; Yun, H.; Lee, Y.-N. (2019). "The postcranial skeleton of Bagaceratops (Ornithischia: Neoceratopsia) from the Baruungoyot Formation (Upper Cretaceous) in Hermiin Tsav of southwestern Gobi, Mongolia". Journal of the Geological Society of Korea. 55 (2): 179−190. doi:10.14770/jgsk.2019.55.2.179. S2CID 150321203.
  9. ^ Kurzanov, S. M. (1990). "A new Late Cretaceous protoceratopsid genus from Mongolia". Paleontological Journal. 24: 85−91.
  10. ^ Tereschhenko, V. S. (2008). "Adaptive Features of Protoceratopsids (Ornithischia: Neoceratopsia)". Paleontological Journal. 42 (3): 50−64. doi:10.1134/S003103010803009X. S2CID 84366476.
  11. ^ Maryańska, T.; Osmólska, H. (1974). "Pachycephalosauria, a new suborder of ornithischian dinosaurs" (PDF). Palaeontologica Polonica (30): 45−102.
  12. ^ Sullivan, R. M. (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)". New Mexico Museum of Natural History and Science Bulletin (35): 347–365.
  13. ^ K. Mikhailov, K. Sabath, and S. Kurzanov. (1994). Eggs and nests from the Cretaceous of Mongolia. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge 88-115.
  14. ^ Kurzanov, S. and Bannikov, A. (1983). "A new sauropod from the Upper Cretaceous of Mongolia". Paleontologicheskii Zhurnal 2: 90–96.
  15. ^ Alifanov, V. R.; Barsbold, R. (2009). Ceratonykus oculatus gen. et sp. nov., a new dinosaur (? Theropoda, Alvarezsauria) from the Late Cretaceous of Mongolia. Paleontological Journal 43 (1): 94−106.
  16. ^ Alifanov, V. R.; Saveliev, S. V. (2011). Brain structure and neurobiology of alvarezsaurians (Dinosauria), exemplified by Ceratonykus oculatus (Parvicursoridae) from the Late Cretaceous of Mongolia. Paleontological Journal. 45 (2), 183−190.
  17. ^ Kubo, Kohta; Kobayashi, Yoshitsugu; Chinzorig, Tsogtbaatar; Tsogtbaatar, Khishigjav (2023-11-15). "A new alvarezsaurid dinosaur (Theropoda, Alvarezsauria) from the Upper Cretaceous Baruungoyot Formation of Mongolia provides insights for bird-like sleeping behavior in non-avian dinosaurs". PLOS ONE. 18 (11): e0293801. doi:10.1371/journal.pone.0293801. ISSN 1932-6203. PMC 10651048.
  18. ^ Averianov, Alexander O.; Lopatin, Alexey V. (2021-11-18). "The second taxon of alvarezsaurid theropod dinosaurs from the Late Cretaceous Khulsan locality in Gobi Desert, Mongolia". Historical Biology. 34 (11): 2125–2136. doi:10.1080/08912963.2021.2000976. ISSN 0891-2963. S2CID 244421277.
  19. ^ Alexander O. Averianov; Alexey V. Lopatin (19 February 2022). "A new alvarezsaurid theropod dinosaur from the Upper Cretaceous of Gobi Desert, Mongolia". Cretaceous Research. 134: 105168. doi:10.1016/j.cretres.2022.105168. S2CID 247000540. Retrieved 19 February 2022.
  20. ^ Karhu, A. A.; Rautian, A. S. (1996). A new family of Maniraptora (Dinosauria: Saurischia) from the Late Cretaceous of Mongolia. Paleontological Journal. 30, 583−592.
  21. ^ a b c d e f g Varricchio, D.J.; Barta, D.E. (2015). "Revisiting Sabath's "Larger Avian Eggs" from the Gobi Cretaceous". Acta Palaeontologica Polonica. 60 (1): 11–25.
  22. ^ a b c Kurochkin, E. N.; Chatterjee, S.; Mikhailov, K. E. (2013). An embryonic enantiornithine bird and associated eggs from the cretaceous of Mongolia. Paleontol. J. 47, 1252–1269.
  23. ^ Elzanowski, A. (1977). Skulls of Gobipteryx (Aves) from the Upper Cretaceous of Mongolia. Results of the Polish-Mongolian Paleontological Expeditions - Part VII. Palaeontologica Polonica. 37, 153-165.
  24. ^ Elzanowski, A. (1995). Cretaceous birds and avian phylogeny. Cour. Forschungsinst. Senckenb. 181, 37-53.
  25. ^ Kurochkin, E. N. (2004). The truth about Gobipteryx. Sixth International Meeting of the Society of Avian Paleontology and Evolution. Abstracts. 33-34.
  26. ^ Bell, A.K., Chiappe, L.M., Suzuki, S., Watabe, M. (2008). "Phylogenetic and morphometric analysis of a new ornithuromorph from the Barun Goyot Formation, Southern Mongolia." Abstracts of the 7th International Meeting of the Society of Avian Paleontology and Evolution.1.
  27. ^ Bell, A.K., Chiappe, L.M., Erickson, G.M., Suzuki, S., Watabe, M., Barsbold, R. and Tsogtbaatar, K. (2010). "Description and ecologic analysis of Hollanda luceria, a Late Cretaceous bird from the Gobi Desert (Mongolia)." Cretaceous Research, 31(1): 16-26. doi:10.1016/j.cretres.2009.09.001
  28. ^ a b c Mikhailov, K. E. (1994). "Theropod and protoceratopsian dinosaur eggs from the Cretaceous of Mongolia and Kazakhstan". Paleontological Journal. 28 (2): 101−120.
  29. ^ Napoli, J. G.; Ruebenstahl, A. A.; Bhullar, B.-A. S.; Turner, A. H.; Norell, M. A. (2021). "A New Dromaeosaurid (Dinosauria: Coelurosauria) from Khulsan, Central Mongolia" (PDF). American Museum Novitates (3982): 1–47. doi:10.1206/3982.1. hdl:2246/7286. ISSN 0003-0082. S2CID 243849373.
  30. ^ Turner, A. H.; Montanari, S.; Norell, M. A. (2021). "A New Dromaeosaurid from the Late Cretaceous Khulsan Locality of Mongolia" (PDF). American Museum Novitates (3965): 1−48. doi:10.1206/3965.1. hdl:2246/7251. ISSN 0003-0082. S2CID 231597229.
  31. ^ Weishampel, D. B.; Barrett, P. M.; Coria, R. A.; Loeuff, J. L.; Xing, X.; Xijin, Z.; Sahni, A.; Gomani, E. M. P. (2004). "Dinosaur Distribution". In Weishampel, D. B.; Dodson, P.; Osmolska, H. (eds.). The Dinosauria (2nd ed.). University of California Press. pp. 596−598. ISBN 0520242092.
  32. ^ Longrich, N. R.; Currie, P. J.; Dong, Z. (2010). "A new oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Bayan Mandahu, Inner Mongolia". Palaeontology. 53 (5): 945−960. doi:10.1111/j.1475-4983.2010.00968.x.
  33. ^ Cau, A.; Madzia, D. (2018). "Redescription and affinities of Hulsanpes perlei (Dinosauria, Theropoda) from the Upper Cretaceous of Mongolia". PeerJ. 6: e4868. doi:10.7717/peerj.4868. PMC 5978397. PMID 29868277.
  34. ^ Lee, Sungjin; Lee, Yuong-Nam; Currie, Philip J.; Sissons, Robin; Park, Jin-Young; Kim, Su-Hwan; Barsbold, Rinchen; Tsogtbaatar, Khishigjav (2022-12-01). "A non-avian dinosaur with a streamlined body exhibits potential adaptations for swimming". Communications Biology. 5 (1): 1185. doi:10.1038/s42003-022-04119-9. ISSN 2399-3642. PMC 9715538. PMID 36456823. S2CID 254128147.
  35. ^ Maryańska, T.; Osmólska, H.; Wolsan, M. (2002). "Avialan status for Oviraptorosauria" (PDF). Acta Palaeontologica Polonica. 47 (1): 97−116.
  36. ^ Kundrat, M. (2007). Avian-like attributes of a virtual brain model of the oviraptorid theropod Conchoraptor gracilis. Naturwissenschaften. 94: 499−504.
  37. ^ Kundrat, M.; Janacek, J. (2007). Cranial pneumatization and auditory perceptions of the oviraptorid dinosaur Conchoraptor gracilis (Theropoda, Maniraptora) from the Late Cretaceous of Mongolia. Naturwissenschaften. 94(9): 769−778.
  38. ^ a b Funston, G. F.; Mendonca, S. E.; Currie, P. J.; Barsbold, R.; Barsbold, R. (2018). "Oviraptorosaur anatomy, diversity and ecology in the Nemegt Basin". Palaeogeography, Palaeoclimatology, Palaeoecology. 494: 101−120. Bibcode:2018PPP...494..101F. doi:10.1016/j.palaeo.2017.10.023.
  39. ^ a b Funston, G. F. (2019). "Chapter 4 – Oviraptoridae" (PDF). Anatomy, systematics, and evolution of Oviraptorosauria (Dinosauria, Theropoda) (PhD thesis). University of Alberta.
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  41. ^ Fanti, F.; Currie, P. J.; Badamgarav, D.; Lalueza-Fox, C. (2012). "New specimens of Nemegtomaia from the Baruungoyot and Nemegt Formations (Late Cretaceous) of Mongolia". PLOS ONE. 7 (2): e31330. Bibcode:2012PLoSO...731330F. doi:10.1371/journal.pone.0031330. PMC 3275628. PMID 22347465.

January 01, 1970
barun, goyot, formation, also, known, baruungoyot, formation, west, goyot, formation, geological, formation, dating, late, cretaceous, period, located, within, widely, represented, gobi, desert, basin, ömnögovi, province, mongolia, stratigraphic, range, maastr. The Barun Goyot Formation also known as Baruungoyot Formation or West Goyot Formation is a geological formation dating to the Late Cretaceous Period It is located within and is widely represented in the Gobi Desert Basin in the Omnogovi Province of Mongolia Barun Goyot FormationStratigraphic range Maastrichtian 72 71 Ma PreꞒ Ꞓ O S D C P T J K Pg N Hermiin Tsav a highly fossiliferous locality of the formationTypeGeological formationUnderliesNemegt FormationOverliesDjadokhta FormationThicknessca 110 m 360 ft LithologyPrimarySandstoneLocationCoordinates43 30 N 99 48 E 43 5 N 99 8 E 43 5 99 8Approximate paleocoordinates40 30 N 89 30 E 40 5 N 89 5 E 40 5 89 5RegionOmnogovCountry MongoliaExtentGobi DesertBarun Goyot Formation Mongolia Contents 1 Description 2 Paleobiota of the Barun Goyot Formation 2 1 Lizards 2 2 Mammals 2 3 Dinosaurs 2 3 1 Ornithiscians 2 3 1 1 Ankylosaurs 2 3 1 2 Ceratopsians 2 3 1 3 Pachycephalosaurs 2 3 2 Sauropods 2 3 3 Theropods 2 3 3 1 Alvarezsaurs 2 3 3 2 Birds 2 3 3 3 Dromaeosaurs 2 3 3 4 Halszkaraptorines 2 3 3 5 Oviraptorosaurs 3 Gallery 4 See also 5 ReferencesDescription edit nbsp Khulsan in 1970 It was previously known as the Lower Nemegt Beds occurring beneath the Nemegt Formation and above the Djadokhta Formation It has been suggested that the Djadokhta and Barun Goyot Formations are lower and upper parts respectively of the same lithological unit and the boundary between the two does not exist The stratotype of the Barun Goyot Formation is the Khulsan locality east of Nemegt At Nemegt only the uppermost barungoyotian beds are visible The Red Beds of Khermeen Tsav are also considered part of the Barun Goyot Formation It is approximately 110 metres 360 ft in thickness 1 and was laid down roughly 72 71 million years ago Given the new date for the start of the Maastrichtian 72 1 MYA a basal Maastrichtian age seems probable The Barun Goyot Formation preserves an environment of sand dunes created from wind eroded rocks aeolian dunes Paleobiota of the Barun Goyot Formation editColor key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon Notes Uncertain or tentative taxa are in small text crossed out taxa are discredited Lizards edit Genus Species Location Material Notes Images Estesia Estesia mongoliensis An anguimorph Gobiderma Gobiderma pulchrum A Monstersaur Proplatynotia Proplatynotia longirostrata Mammals edit Genus Species Location Material Notes Images Asioryctes A nemegtensis An eutherian nbsp Barunlestes B butleri An eutherian nbsp Catopsbaatar C catopsaloides A djadochtatheriid nbsp Chulsanbaatar C vulgaris A multituberculate Deltatheridium D pretrituberculare A tribosphenid Nemegtbaatar N gobiensis A multituberculate nbsp Zofialestes Z longidens A eutherian Dinosaurs edit Ornithiscians edit Ankylosaurs edit Genus Species Location Material Notes Images Saichania S chulsanensis Hermiin Tsav II Khulsan Three skulls mandibles cervical vertebrae dorsal vertebrae ribs sternum scapulocoracoids humerus ulna radius manus cervical half rings and osteoderms 2 3 4 An ankylosaurid also known from the Nemegt Formation nbsp Tarchia T kielanae Hermiin Tsav II Khulsan Two partial skulls osteoderms and three undescribed specimens 3 4 An ankylosaurid also known from a second species T teresae which was found in the Nemegt Formation nbsp Zaraapelta Z nomadis Hermiin Tsav A partial skull missing the rostrum 3 An ankylosaurid known from a subadult individual Ankylosauridae indet Indeterminate Hermiin Tsav Dorsal vertebrae ribs pectoral girdles forelimbs pelvic girdles hindlimbs and osteoderms 5 An ankylosaurid known from a specimen preserved in a resting posture nbsp Ceratopsians edit Genus Species Location Material Notes Images Bagaceratops B rozhdestvenskyi Hermin Tsav Khulsan Multiple specimens with partial to nearly complete skulls and skeletons 6 7 8 A protoceratopsid Gobiceratops Lamaceratops and Platyceratops are now considered synonyms of Bagaceratops 7 nbsp Breviceratops B kozlowskii Khulsan Two skulls and partial skeleton remains 9 7 A protoceratopsid nbsp Udanoceratops Indeterminate Baga Tariach Partial juvenile specimen 10 A giant leptoceratopsid nbsp Pachycephalosaurs edit Genus Species Location Material Notes Images Tylocephale T gilmorei Khulsan Partial skull 11 12 A pachycephalosaurid nbsp Sauropods edit Genus Species Location Material Notes Images Faveoloolithus F ningxiaensis Hermiin Tsav Ikh Shunkht Ologoy Ulan Tsav Eggs egg clutches and shells 13 Eggs probably laid by a sauropod Quaesitosaurus Q orientalis Shar Tsav Partial skull 14 A titanosaur nbsp Theropods edit Alvarezsaurs edit Genus Species Location Material Notes Images Ceratonykus C oculatus Hermiin Tsav Partial skull with skeleton 15 16 An alvarezsaurid nbsp Jaculinykus J yaruui Nemegt A nearly complete articulated skeleton including much of the skull 17 A parvicursorine alvarezsaurid nbsp Khulsanurus K magnificus Khulsan Partial skeleton including cervical and caudal vertebrae scapulocoracoids humerus and pubis 18 An alvarezsaurid Ondogurvel O alifanovi Nemegt Partial postcranial skeleton including dorsal and sacral vertebrae and hip and leg bones 19 An alvarezsaurid nbsp Parvicursor P remotus Khulsan Partial vertebrae pelvic girdle and hindlimbs 20 An alvarezsaurid nbsp Birds edit Genus Species Location Material Notes Images Gobioolithus G major Gilbent Khulsan Five eggs 21 Eggs probably laid by a bird G minor Hermiin Tsav Khulsan Eggs with embryonic remains 22 21 Eggs probably laid by Gobipipus 22 21 Gobipipus G reshetovi Hermiin Tsav Khulsan Embryonic skulls and skeletons 22 An enantiornithine Gobipteryx G minuta Hermiin Tsav Khulsan Skulls and partial skeletons and embryonic remains 23 24 25 An enantiornithine Also present in the Djadokhta Formation Hollanda H luceria Hermiin Tsav Partial hindlimbs from several specimens 26 27 An ornithuromorph nbsp Protoceratopsidovum P fluxuosum Hermiin Tsav Khulsan Clutch of 19 eggs and isolated eggs 28 Eggs probably laid by a bird 21 P minimum Ikh Shunkht Clutch of eggs 28 Eggs probably laid by a bird 21 P sincerum Hermiin Tsav Partial egg 28 Eggs probably laid by a bird 21 Styloolithus S sabathi Khulsan Partial eggs 21 Eggs probably laid by a bird Dromaeosaurs edit Genus Species Location Material Notes Images Kuru K kulla Khulsan Fragmentary skeleton 29 A dromaeosaurid nbsp Shri S devi Khulsan Articulated skeleton lacking skull 30 A dromaeosaurid nbsp Velociraptorinae indet Indeterminate Hermin Tsav Khulsan Not specified 31 32 A dromaeosaurid Halszkaraptorines edit Genus Species Location Material Notes Images Hulsanpes H perlei Khulsan Partial foot and skull bone 33 A halszkaraptorine nbsp Natovenator N polydontus Hermiin Tsav Partial articulated skeleton with skull 34 A halszkaraptorine nbsp Oviraptorosaurs edit Genus Species Location Material Notes Images Conchoraptor C gracilis Hermin Tsav Khulsan Multiple specimens with skulls and partial skeletons 35 36 37 38 39 An oviraptorid Also present in the Nemegt Formation nbsp Heyuannia H yanshini Hermiin Tsav Partial skulls and skeletons 40 38 39 An oviraptorid Originally identified as Ajancingenia and Ingenia nbsp Nemegtomaia N barsboldi Nemegt Nesting specimen 41 An oviraptorid Also present in the Nemegt Formation nbsp Gallery edit nbsp Panoramic view of the Hermiin Tsav locality of the Barun Goyot Formation nbsp nbsp nbsp nbsp nbsp See also editList of dinosaur bearing rock formations List of fossil sites with link directory References edit Gradzinski R amp Jerzykiewicz T 1974 Sedimentation of the Barun Goyot formation Palaeontologica Polonica 30 111 146 Carpenter K Hayashi S Kobayashi Y Maryanska T Barsbold R Sato K and Obata I 2011 Saichania chulsanensis Ornithischia Ankylosauridae from the Upper Cretaceous of Mongolia Palaeontographica Abteilung A 294 1 3 1 61 a b c Arbour V M Currie P J Badamgarav D 2014 The ankylosaurid dinosaurs of the Upper Cretaceous Baruungoyot and Nemegt formations of Mongolia Zoological Journal of the Linnean Society 172 3 631 652 doi 10 1111 zoj 12185 a b Penkalski P Tumanova T 2017 The cranial morphology and taxonomic status of Tarchia Dinosauria Ankylosauridae from the Upper Cretaceous of Mongolia Cretaceous Research 70 117 127 doi 10 1016 j cretres 2016 10 004 Park J Y Lee Y N Currie P J Ryan M J Bell P Sissons R Koppelhus E B Barsbold R Lee S Kim S H 2021 A new ankylosaurid skeleton from the Upper Cretaceous Baruungoyot Formation of Mongolia its implications for ankylosaurid postcranial evolution Scientific Reports 11 4101 4101 doi 10 1038 s41598 021 83568 4 PMC 7973727 PMID 33737515 Maryanska T Osmolska H 1975 Protoceratopsidae Dinosauria of Asia PDF Palaeontologia Polonica 33 134 143 Archived from the original PDF on 2018 09 21 Retrieved 2021 05 27 a b c Czepinski L 2019 Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert PDF Historical Biology 32 10 1394 1421 doi 10 1080 08912963 2019 1593404 S2CID 132780322 Archived from the original PDF on 2021 07 08 Retrieved 2021 05 27 Kim B Yun H Lee Y N 2019 The postcranial skeleton of Bagaceratops Ornithischia Neoceratopsia from the Baruungoyot Formation Upper Cretaceous in Hermiin Tsav of southwestern Gobi Mongolia Journal of the Geological Society of Korea 55 2 179 190 doi 10 14770 jgsk 2019 55 2 179 S2CID 150321203 Kurzanov S M 1990 A new Late Cretaceous protoceratopsid genus from Mongolia Paleontological Journal 24 85 91 Tereschhenko V S 2008 Adaptive Features of Protoceratopsids Ornithischia Neoceratopsia Paleontological Journal 42 3 50 64 doi 10 1134 S003103010803009X S2CID 84366476 Maryanska T Osmolska H 1974 Pachycephalosauria a new suborder of ornithischian dinosaurs PDF Palaeontologica Polonica 30 45 102 Sullivan R M 2006 A taxonomic review of the Pachycephalosauridae Dinosauria Ornithischia New Mexico Museum of Natural History and Science Bulletin 35 347 365 K Mikhailov K Sabath and S Kurzanov 1994 Eggs and nests from the Cretaceous of Mongolia In K Carpenter K F Hirsch and J R Horner eds Dinosaur Eggs and Babies Cambridge University Press Cambridge 88 115 Kurzanov S and Bannikov A 1983 A new sauropod from the Upper Cretaceous of Mongolia Paleontologicheskii Zhurnal 2 90 96 Alifanov V R Barsbold R 2009 Ceratonykus oculatus gen et sp nov a new dinosaur Theropoda Alvarezsauria from the Late Cretaceous of Mongolia Paleontological Journal 43 1 94 106 Alifanov V R Saveliev S V 2011 Brain structure and neurobiology of alvarezsaurians Dinosauria exemplified by Ceratonykus oculatus Parvicursoridae from the Late Cretaceous of Mongolia Paleontological Journal 45 2 183 190 Kubo Kohta Kobayashi Yoshitsugu Chinzorig Tsogtbaatar Tsogtbaatar Khishigjav 2023 11 15 A new alvarezsaurid dinosaur Theropoda Alvarezsauria from the Upper Cretaceous Baruungoyot Formation of Mongolia provides insights for bird like sleeping behavior in non avian dinosaurs PLOS ONE 18 11 e0293801 doi 10 1371 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Mongolia Paleontol J 47 1252 1269 Elzanowski A 1977 Skulls of Gobipteryx Aves from the Upper Cretaceous of Mongolia Results of the Polish Mongolian Paleontological Expeditions Part VII Palaeontologica Polonica 37 153 165 Elzanowski A 1995 Cretaceous birds and avian phylogeny Cour Forschungsinst Senckenb 181 37 53 Kurochkin E N 2004 The truth about Gobipteryx Sixth International Meeting of the Society of Avian Paleontology and Evolution Abstracts 33 34 Bell A K Chiappe L M Suzuki S Watabe M 2008 Phylogenetic and morphometric analysis of a new ornithuromorph from the Barun Goyot Formation Southern Mongolia Abstracts of the 7th International Meeting of the Society of Avian Paleontology and Evolution 1 Bell A K Chiappe L M Erickson G M Suzuki S Watabe M Barsbold R and Tsogtbaatar K 2010 Description and ecologic analysis of Hollanda luceria a Late Cretaceous bird from the Gobi Desert Mongolia Cretaceous Research 31 1 16 26 doi 10 1016 j cretres 2009 09 001 a b c Mikhailov K E 1994 Theropod and protoceratopsian dinosaur eggs from the Cretaceous of Mongolia and Kazakhstan Paleontological Journal 28 2 101 120 Napoli J G Ruebenstahl A A Bhullar B A S Turner A H Norell M A 2021 A New Dromaeosaurid Dinosauria Coelurosauria from Khulsan Central Mongolia PDF American Museum Novitates 3982 1 47 doi 10 1206 3982 1 hdl 2246 7286 ISSN 0003 0082 S2CID 243849373 Turner A H Montanari S Norell M A 2021 A New Dromaeosaurid from the Late Cretaceous Khulsan Locality of Mongolia PDF American Museum Novitates 3965 1 48 doi 10 1206 3965 1 hdl 2246 7251 ISSN 0003 0082 S2CID 231597229 Weishampel D B Barrett P M Coria R A Loeuff J L Xing X Xijin Z Sahni A Gomani E M P 2004 Dinosaur Distribution In Weishampel D B Dodson P Osmolska H eds The Dinosauria 2nd ed University of California Press pp 596 598 ISBN 0520242092 Longrich N R Currie P J Dong Z 2010 A new oviraptorid Dinosauria Theropoda from the Upper Cretaceous of Bayan Mandahu Inner Mongolia Palaeontology 53 5 945 960 doi 10 1111 j 1475 4983 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