Lianmuqin Formation

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Lianmuqin Formation
Stratigraphic range: Valanginian-Albian
~140–100 Ma
TypeGeological formation
Unit ofTugulu Group
Underlies &
OverliesShengjinkou Formation
Thickness213–360 m (699–1,181 ft)
Lithology
PrimaryMudstone, siltstone
Location
Coordinates46°00′N 85°48′E / 46.0°N 85.8°E / 46.0; 85.8Coordinates: 46°00′N 85°48′E / 46.0°N 85.8°E / 46.0; 85.8
Approximate paleocoordinates45°00′N 81°54′E / 45.0°N 81.9°E / 45.0; 81.9
RegionXinjiang
Country China
ExtentJunggar Basin
Type section
Named forLianmuqin
Lianmuqin Formation is located in China
Lianmuqin Formation
Lianmuqin Formation (China)

The Lianmuqin Formation,[1] also transcribed as Lianmugin Formation,[2] is an Early Cretaceous geologic formation composed of "interbedded red green and yellow variegated mudstones and siltstones".[3][4] Dinosaur remains have been recovered from it.[5]

The formation is named after Lianmuqin Town in Shanshan County, Xinjiang.

Vertebrate paleofauna[]

Dinosaurs[]

Dinosaurs of the Lianmuqin Formation
Genus Species Location Stratigraphic position Material Notes Images
Asiatosaurus[6] A. mongoliensis[6]
Kelmayisaurus[6][7] K. petrolicus[6] "Maxilla and dentary."[8]
Xinjiangovenator X. parvus "Tibia [and] phalanges."[9] Formerly thought to be a representative of Phaedrolosaurus ilikensis.[6]
Phaedrolosaurus P. ilikensis "tooth"[10]
Psittacosaurus[6] P. xinjiangensis[6]
Tugulusaurus[6] T. faciles[6] "Hindlimb, rib, [and a] vertebral centrum."[11]
Wuerhosaurus[6] W. homheni[6] "Partial skeleton."[12]
Wuerhosaurus sketch2.jpg

Pterosaurs[]

Pterosaurs of the Lianmuqin Formation
Genus Species Location Stratigraphic position Abundance Notes Images
Dsungaripteridae indet.[13] indeterminate[13] Not referable to Lonchognathosaurus or Dsungaripterus; likely a new taxon.[13]
Dsungaripterus D. weii[14]
Dsungaripterus and Noripterus
Noripterus N. complicidens[15]
Lonchognathosaurus L. acutirostris[15] Possible junior synonym of Dsungaripterus weii.[16]

Crurotarsans[]

Name Species Location Stratigraphic position Abundance Notes Images
Edentosuchus E. tienshanensis[17]
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.

See also[]

References[]

  1. ^ "Re: Kelmayisaurus a carcharodontosaurid". dml.cmnh.org. Retrieved 2015-01-05.
  2. ^ Lianmugin Formation at Fossilworks.org
  3. ^ Lucas, Spencer G, Chinese Fossil vertebrates, Pp. 158-159, New York, Columbia University Press, ISBN 0-231-08483-8.
  4. ^ Lucas, S.G. (2001). Chinese Fossil Vertebrates. Columbia University Press. p. 158. ISBN 9780231084833. Retrieved 2015-01-05.
  5. ^ Weishampel et al., 2004, pp.517-607
  6. ^ a b c d e f g h i j k "48.5 Xinjiang Uygur Zizhiqu, People's Republic of China; 1. Tugulu Group," in Weishampel, et al. (2004). Page 567.
  7. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2011-05-22. Retrieved 2011-04-28.{{cite web}}: CS1 maint: archived copy as title (link)
  8. ^ "Table 4.1," in Weishampel, et al. (2004). Page 73.
  9. ^ "Table 4.1," in Weishampel, et al. (2004). Page 78.
  10. ^ Z.-M. Dong. (1973). [Dinosaurs from Wuerho]. Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology, Academic Sinica 11:45-52. [Chinese]
  11. ^ "Table 4.1," in Weishampel, et al. (2004). Page 77.
  12. ^ "Table 16.1," in Weishampel, et al. (2004). Page 345.
  13. ^ a b c Augustin FJ, Matzke AT, Maisch MW, Csiki-Sava Z (2021). "Pterosaur remains from the Lower Cretaceous Lianmuxin Formation (upper Tugulu Group) of the southern Junggar Basin (NW China)". Historical Biology: An International Journal of Paleobiology. in press: 1–10. doi:10.1080/08912963.2021.1910819. S2CID 233597623.
  14. ^ "Re: The timing of stegosaur extinction". dml.cmnh.org. Retrieved 2015-01-05.
  15. ^ a b Barrett, P.M., Butler, R.J., Edwards, N.P., & Milner, A.R. Pterosaur distribution in time and space: an atlas. p61-107. in Flugsaurier: Pterosaur papers in honour of Peter Wellnhofer. 2008. Hone, D.W.E., and Buffetaut, E. (eds). Zitteliana B, 28. 264pp.[1]
  16. ^ Andres, B.; Clark, J. M.; Xing, X. (2010). "A new rhamphorhynchid pterosaur from the Upper Jurassic of Xinjiang, China, and the phylogenetic relationships of basal pterosaurs" (PDF). Journal of Vertebrate Paleontology. 30 (1): 163–187. doi:10.1080/02724630903409220. S2CID 53688256.
  17. ^ Jinling Li (July 1985). "A revision of Edentosuchus tienshanensis Young from the Tugulu Group of Xinjiang Autonomous Region" (PDF). Vertebrata PalAsiatica. 23 (3): 196–206. Retrieved 2015-01-05.

Bibliography[]

  • Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
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