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Lianmuqin Formation

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Coordinates: 46°00′N 85°48′E / 46.0°N 85.8°E / 46.0; 85.8
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Lianmuqin Formation
Stratigraphic range: Aptian–Albian[1]
TypeGeological formation
Unit ofTugulu Group
UnderliesDonggou & Kumutake Formations
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; 85.8
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 Dzungaria
Lianmuqin Formation
Lianmuqin Formation (Dzungaria)

The Lianmuqin Formation,[2] also transcribed as Lianmugin Formation,[3] and Lianmuxin Formation,[4] is an Early Cretaceous geologic formation composed of "interbedded red green and yellow variegated mudstones and siltstones".[5][6] Dinosaur remains have been recovered from it.[7]

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

Vertebrate paleofauna

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Dinosaurs

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Dinosaurs of the Lianmuqin Formation
Genus Species Location Stratigraphic position Material Notes Images
Asiatosaurus[8] A. mongoliensis[8] NW Junggar Basin
Kelmayisaurus[8][9] K. petrolicus[8] NW Junggar Basin "Maxilla and dentary."[10]
Xinjiangovenator X. parvus NW Junggar Basin "Tibia [and] phalanges."[11] Formerly thought to be a representative of Phaedrolosaurus ilikensis.[8]
Phaedrolosaurus P. ilikensis NW Junggar Basin "tooth"[12]
Psittacosaurus[8] P. xinjiangensis[8] NW Junggar Basin
Tugulusaurus[8] T. faciles[8] NW Junggar Basin "Hindlimb, rib, [and a] vertebral centrum."[13]
Wuerhosaurus[8] W. homheni[8] NW Junggar Basin "Partial skeleton."[14]

Pterosaurs

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Pterosaurs of the Lianmuqin Formation
Genus Species Location Stratigraphic position Abundance Notes Images
Dsungaripteridae indet.[15] indeterminate[15] Southern Junggar Basin Not referable to Lonchognathosaurus or Dsungaripterus; likely a new taxon.[15]
Dsungaripterus D. weii[16] NW Junggar Basin
Dsungaripterus and Noripterus
Noripterus N. complicidens[17] NW Junggar Basin
Lonchognathosaurus L. acutirostris[17] Southern Junggar Basin Possible junior synonym of Dsungaripterus weii.[18]

Plesiosaurs

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Name Species Location Stratigraphic position Abundance Notes Images
Sinopliosaurus S. weiyuanensis NW Junggar Basin Three vertebrae and a tooth.[19][20] Dubious genus of plesiosaur.

Crurotarsans

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Name Species Location Stratigraphic position Abundance Notes Images
Edentosuchus E. tienshanensis[21] NW Junggar Basin

Turtles

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Name Species Location Stratigraphic position Abundance Notes Images
Dracochelys D. bicuspis Southern Junggar Basin [22]
Ordosemys O. brinkmania NW Junggar Basin [22]
Wuguia W. efremovi Southern Junggar Basin [22]
Xinjiangchelys X. sp. NW Junggar Basin [22]
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

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References

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  1. ^ Alexander O. Averianov; Stepan V. Ivantsov; Sergey V. Leshchinskiy; Pavel P.Skutschas (12 April 2022). "First pterosaur bone from the Lower Cretaceous of Siberia, Russia". Cretaceous Research. 135: 105230. Bibcode:2022CrRes.13705230A. doi:10.1016/j.cretres.2022.105230. S2CID 248136173. Retrieved 13 April 2022.
  2. ^ "Re: Kelmayisaurus a carcharodontosaurid". dml.cmnh.org. Retrieved 2015-01-05.
  3. ^ Lianmugin Formation at Fossilworks.org
  4. ^ I. G. Danilov, J. F. Parham (2007). "The type series of "Sinemys" wuerhoensis, a problematic turtle from the Lower Cretaceous of China, includes at least three taxa". Palaeontology. 50 (2): 431. Bibcode:2007Palgy..50..431D. doi:10.1111/j.1475-4983.2006.00632.x.
  5. ^ Lucas, Spencer G, Chinese Fossil vertebrates, Pp. 158-159, New York, Columbia University Press, ISBN 0-231-08483-8.
  6. ^ Lucas, S.G. (2001). Chinese Fossil Vertebrates. Columbia University Press. p. 158. ISBN 9780231084833. Retrieved 2015-01-05.
  7. ^ Weishampel et al., 2004, pp.517-607
  8. ^ 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.
  9. ^ "A reassessment of Kelmayisaurus petrolicus, a large theropod dinosaur from the Early Cretaceous of China" (PDF). Acta Palaeontologica Polonica (Preprint). Archived from the original (PDF) on 2011-05-22. Retrieved 2011-04-28.
  10. ^ "Table 4.1," in Weishampel, et al. (2004). Page 73.
  11. ^ "Table 4.1," in Weishampel, et al. (2004). Page 78.
  12. ^ Z.-M. Dong. (1973). [Dinosaurs from Wuerho]. Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology, Academic Sinica 11:45-52. [Chinese]
  13. ^ "Table 4.1," in Weishampel, et al. (2004). Page 77.
  14. ^ "Table 16.1," in Weishampel, et al. (2004). Page 345.
  15. ^ 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. 34 (2): 312–321. doi:10.1080/08912963.2021.1910819. S2CID 233597623.
  16. ^ "Re: The timing of stegosaur extinction". dml.cmnh.org. Archived from the original on 2016-03-03. Retrieved 2015-01-05.
  17. ^ 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]
  18. ^ 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. Bibcode:2010JVPal..30..163A. doi:10.1080/02724630903409220. S2CID 53688256.
  19. ^ C.-C. Young. (1944). On the reptilian remains from Weiyuan, Szechuan, China. Bulletin of the Geological Society of China 24(3–4):187-205
  20. ^ Z. Dong. (1973). [Cretaceous stratigraphy of Wuerho district, Dsungar Basin]. Reports of Paleontological Expedition to Sinkiang (II): Pterosaurian Fauna from Wuerho, Sinkiang. Memoirs of the Institute of Vertebrate Paleontology and Paleoanthropology, Academia Sinica 11:1-7
  21. ^ 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.
  22. ^ a b c d Zheng, Daran; Chang, Su-Chin; Ramezani, Jahandar; Xu, Xing; Xu, Honghe; Wang, He; Pei, Rui; Fang, Yanan; Wang, Jun; Wang, Bo; Zhang, Haichun (2023-05-10). "Calibrating the Early Cretaceous Urho Pterosaur Fauna in Junggar Basin and implications for the evolution of the Jehol Biota". Geological Society of America Bulletin. doi:10.1130/b36795.1. ISSN 0016-7606.

Bibliography

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