Lianmuqin Formation

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Lianmuqin Formation
Stratigraphic range: Aptian–Albian [1]
Type Geological formation
Unit of Tugulu Group
Underlies Donggou & Kumutake Formations
Overlies Shengjinkou Formation
Thickness213–360 m (699–1,181 ft)
Lithology
Primary Mudstone, siltstone
Location
Coordinates 46°00′N85°48′E / 46.0°N 85.8°E / 46.0; 85.8
Approximate paleocoordinates 45°00′N81°54′E / 45.0°N 81.9°E / 45.0; 81.9
Region Xinjiang
Country China
Extent Junggar Basin
Type section
Named for Lianmuqin
China edcp relief location map.jpg
Green pog.svg
Lianmuqin Formation (China)
China Xinjiang rel location map.svg
Green pog.svg
Lianmuqin Formation (Xinjiang)

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]

Contents

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

Vertebrate paleofauna

Dinosaurs

Dinosaurs of the Lianmuqin Formation
GenusSpeciesLocationStratigraphic positionMaterialNotesImages
Asiatosaurus [8] A. mongoliensis [8] NW Junggar Basin
Kelmayisaurus [8] [9] K. petrolicus [8] NW Junggar Basin"Maxilla and dentary." [10]
Xinjiangovenator X. parvusNW Junggar Basin"Tibia [and] phalanges." [11] Formerly thought to be a representative of Phaedrolosaurus ilikensis. [8]
Phaedrolosaurus P. ilikensisNW 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]
Wuerhosaurus homheni.png

Pterosaurs

Pterosaurs of the Lianmuqin Formation
GenusSpeciesLocationStratigraphic positionAbundanceNotesImages
Dsungaripteridae indet. [15] indeterminate [15] Southern Junggar BasinNot referable to Lonchognathosaurus or Dsungaripterus ; likely a new taxon. [15]
Dsungaripterus D. weii [16] NW Junggar Basin
Dsungaripterus and Noripterus Dsungaripterus weii.jpg
Dsungaripterus and Noripterus
Noripterus N. complicidens [17] NW Junggar Basin
Lonchognathosaurus L. acutirostris [17] Southern Junggar BasinPossible junior synonym of Dsungaripterus weii. [18]
Ornithocheiromorpha Indet. [19] Indeterminate

Plesiosaurs

NameSpeciesLocationStratigraphic positionAbundanceNotesImages
Sinopliosaurus S. weiyuanensisNW Junggar BasinThree vertebrae and a tooth. [20] [21] Dubious genus of plesiosaur.

Crurotarsans

NameSpeciesLocationStratigraphic positionAbundanceNotesImages
Edentosuchus E. tienshanensis [22] NW Junggar Basin

Turtles

NameSpeciesLocationStratigraphic positionAbundanceNotesImages
Dracochelys D. bicuspisSouthern Junggar Basin [23]
Ordosemys O. brinkmaniaNW Junggar Basin [23]
Wuguia W. efremoviSouthern Junggar Basin [23]
Xinjiangchelys X. sp.NW Junggar Basin [23]
Color key
Taxon Reclassified taxonTaxon falsely reported as presentDubious 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. ↑ 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   978-0-231-08483-3 . Retrieved 2015-01-05.
  7. ↑ Weishampel et al., 2004, pp.517-607
  8. 1 2 3 4 5 6 7 8 9 10 11 "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. 1 2 3 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. 1 2 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.
  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. ↑ Song, J.; Zhong, Y.; Jiang, S.; Wang, X. (2025). "The first ornithocheiromorph humerus from Wuerho (Urho), China, with a new isotopic age of the Tugulu Group". Anais da Academia Brasileira de Ciências. 97 (Suppl. 1). e20240557. doi: 10.1590/0001-3765202520240557 .
  20. ↑ C.-C. Young. (1944). On the reptilian remains from Weiyuan, Szechuan, China. Bulletin of the Geological Society of China 24(3–4):187-205
  21. ↑ 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
  22. ↑ 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.
  23. 1 2 3 4 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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