Bagaceratops

Description

Bagaceratops est un genre éteint de dinosaure cératopsien ayant vécu il y a environ 72 millions d'années, durant le Maastrichtien basal (Crétacé supérieur), dans ce qui est maintenant le bassin de Nemegt, dans la province d'Ömnögovi, au sud de la Mongolie.
Le genre est monotypique et l'espèce type est Bagaceratops rozhdestvenskyi.

Information(s)

Source: The Paleobiology Database

Attibution: Maryanska and Osmólska 1975⁶⁰⁴⁸
Statut: Valide
Nom commun: Petite tête cornue
Longueur (en m): ?
Largeur (en m): ?
Hauteur (en m): ?
Poids (en m): de ? à ?
Environnement de découverte: terrestrial
Mode de vie: terrestrial
Mode de locomotion: actively mobile
Vision: ?
Alimentation: herbivore
Mode de reprodution: oviparous, dispersal=direct/internal,mobile
Classification: Protoceratopsidae >> Coronosauria >> Neoceratopsia >> Ceratopsia >> Marginocephalia >> Cerapoda >> Genasauria >> Ornithischia >> Dinosauria
Période: Campanian - Maastrichtian (de -83.60 Ma à -66.00 Ma)

Espèce(s):
- Bagaceratops rozhdestvenskyi (Valide)⁶⁰⁴⁸
- Gobiceratops minutus (Synonyme subjectif de Bagaceratops rozhdestvenskyi)²⁹¹¹⁸
- Lamaceratops tereschenkoi (Synonyme subjectif de Bagaceratops rozhdestvenskyi)¹¹⁷⁴⁴
- Magnirostris dodsoni (Synonyme subjectif de Bagaceratops rozhdestvenskyi)¹⁸⁴⁶¹
- Platyceratops tatarinovi (Synonyme subjectif de Bagaceratops rozhdestvenskyi)¹¹⁷⁴⁴

Specimen(s):

Platyceratops tatarinovi subjective synonym of Bagaceratops rozhdestvenskyi: holotype PIN 3142/299 - skull
Bagaceratops rozhdestvenskyi: holotype ZPAL MgD-1/129 - skull
Détail des Spécimens

Autre(s) Taxon(s) trouvés dans la litterature:
- Lamaceratops tereschenkoi n. subjective synonym of Bagaceratops rozhdestvenskyi
- Bagaceratops
- Gobiceratops minutus n. subjective synonym of Bagaceratops rozhdestvenskyi
- Platyceratops tatarinovi n. subjective synonym of Bagaceratops rozhdestvenskyi
- Bagaceratops rozhdestvenskyi
Découverte(s): 18 occcurrences
Ouvrir - Fermer
- Chine
  - Nei Mongol
    - ?
      - Formation Bayan Mandahu
        Bagaceratops: ? ¹⁹⁶⁷⁸
        Bagaceratops rozhdestvenskyi identifié comme Magnirostris dodsoni: ? ¹⁸⁴⁶¹
- Mongolie
  - Omnogov
    - ?
      - Formation Baruungoyot
        Bagaceratops: ? ⁵³⁷⁵⁹
        Bagaceratops rozhdestvenskyi: ZPAL MgD-1/129: skull ⁶⁰⁴⁸
        Bagaceratops rozhdestvenskyi: ? ⁸⁶²⁶⁹
        Bagaceratops rozhdestvenskyi: ? ⁸⁶²⁶⁹
        Bagaceratops rozhdestvenskyi: ? ⁷⁰³⁰⁵
        Bagaceratops rozhdestvenskyi identifié comme Platyceratops tatarinovi n. gen. n. sp.: PIN 3142/299 : skull ¹¹⁷⁴⁴
        Bagaceratops rozhdestvenskyi identifié comme Gobiceratops minutus n. gen. n. sp.: ? ²⁹¹¹⁸
        Bagaceratops rozhdestvenskyi identifié comme Lamaceratops tereschenkoi n. gen. n. sp.: ? ¹¹⁷⁴⁴
      - Formation Djadokhta
        Bagaceratops: ? ⁵⁷⁵⁷
        Bagaceratops: ? ⁸²²⁸⁰
        Bagaceratops: ? ²³⁸²⁹
        Bagaceratops: ? ⁷⁰⁹²⁵
      - Formation Nemegt
        Bagaceratops: ? ⁴²²⁸⁹
    - Umunugovi Aimag
      - Formation Baruungoyot
        Bagaceratops: ? ²³⁸²⁹
  - Omnogov Aimag
    - ?
      - Formation Djadokhta
        Bagaceratops: ? ³⁵⁴⁹⁸
  - Omnogovi
    - ?
      - Formation Baruungoyot
        Bagaceratops: ? ¹⁵⁶⁴⁸
Historique des modifications:

Référence	Type	Partie	Côté	Dimension (en cm)	Lieu de découverte	Commentaires
PIN 3142/299	holotype	skull		length: 35	Collection: Khermeen Tsav, Red Beds (PIN coll. 3142) [SMPE]- Lieu: MN, Omnogov,
ZPAL MgD-1/129	holotype	skull		length: 150	Collection: Khermeen Tsav I, Red Beds [PMPE]- Lieu: MN, Omnogov,

Pas de modification récente.

Publication(s)

La base comprend 15 publication(s).

Source: The Paleobiology Database

↑^{1 2 3}T. Maryanska and H. Osmólska. 1975. Protoceratopsidae (Dinosauria) of Asia. Palaeontologica Polonica 33:133-181
↑^{1 2}V. R. Alifanov. 2008. The tiny horned dinosaur Gobiceratops minutus gen. et sp. nov. (Bagaceratopidae, Neoceratopsia) from the Upper Cretaceous of Mongolia. Paleontological Journal 42(6):621-633 (https://doi.org/10.1134/S0031030108060087)
↑^{1 2 3 4}V. R. Alifanov. 2003. Two new dinosaurs of the infraorder Neoceratopsia (Ornithischia) from the Upper Cretaceous of the Nemegt Depression, Mongolian People's Republic. Paleontological Journal 37(5):524-534
↑^{1 2}H. You and Z. Dong. 2003. A new protoceratopsid (Dinosauria: Neoceratopsia) from the Late Cretaceous of Inner Mongolia, China. Acta Geologica Sinica 77(3):299-303
↑¹Z.-M. Dong and P. J. Currie. 1994. Protoceratopsian embryos from Inner Mongolia, People's Republic of China. Canadian Journal of Earth Sciences 30(10-11):2248-2254 (https://doi.org/10.1139/e93-195)
↑¹M. Watabe and S. Suzuki. 2000. Report on the Japan–Mongolia Joint Paleontological Expedition to the Gobi desert, 1997. Hayashibara Museum of Natural Sciences Research Bulletin 1:69-82
↑^{1 2}Ł. Czepiński. 2019. Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert. Historical Biology 32(10):1394-1421 (https://doi.org/10.1080/08912963.2019.1593404)
↑¹B. Kim, H. Yun, and Y.-N. Lee. 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 (https://doi.org/10.14770/jgsk.2019.55.2.179)
↑¹D. Dashzeveg, M. J. Novacek, and MA Norell, JM Clark, LM Chiappe, A. Davidson, MC McKenna, L. Dingus, C. Swisher, P. Altangerel. 1995. Extraordinary preservation in a new vertebrate assemblage from the Late Cretaceous of Mongolia. Nature 374:446-449 (https://doi.org/10.1038/374446a0)
↑¹Ł. Czepiński. 2020. New protoceratopsid specimens improve the age correlation of the Upper Cretaceous Gobi Desert strata. Acta Palaeontologica Polonica 65(3):481-497 (https://doi.org/10.4202/app.00701.2019)
↑^{1 2}V. A. Tereshchenko. 2007. Key to protoceratopoid vertebrae (Ceratopsia, Dinosauria) from Mongolia. Paleontological Journal 41(2):175-188 (https://doi.org/10.1134/s0031030107020086)
↑¹V. S. Tereshchenko and T. Singer. 2013. Structural features of neural spines of the caudal vertebrae of protoceratopoids (Ornithischia: Neoceratopsia). Paleontological Journal 47(6):618-630 (https://doi.org/10.1134/s0031030113060105)
↑¹M. Watabe and S. Suzuki. 2000. Report on the Japan–Mongolia Joint Paleontological Expedition to the Gobi desert, 1993. Hayashibara Museum of Natural Sciences Research Bulletin 1:17-29
↑¹M. A. Norell, K.-Q. Gao, and J. Conrad. 2007. A New Platynotan Lizard (Diapsida: Squamata) from the Late Cretaceous Gobi Desert (Ömnögov), Mongolia. American Museum Novitates (3605):1-22 (https://doi.org/10.1206/0003-0082(2008)3605[1:anplds]2.0.co;2)
↑¹E. N. Kurochkin. 1996. A new enantiornithid of the Mongolian Late Cretaceous, and a general appraisal of the infraclass Enantiornithes (Aves). Russian Academy of Sciences Palaeontological Institute Special Issue

Galerie d'images

Source: Wikimédia

Bagaceratops rozhdestvenskyi, a ceratopsian from the Late Cretaceous...