Lianmuqin Formation | |
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Stratigraphic range: | |
Type | Geological formation |
Unit of | Tugulu Group |
Underlies | Donggou & Kumutake Formations |
Overlies | Shengjinkou Formation |
Thickness | 213–360 m (699–1,181 ft) |
Lithology | |
Primary | Mudstone, siltstone |
Location | |
Coordinates | 46°00′N 85°48′E / 46.0°N 85.8°E |
Approximate paleocoordinates | 45°00′N 81°54′E / 45.0°N 81.9°E |
Region | Xinjiang |
Country | ![]() |
Extent | Junggar Basin |
Type section | |
Named for | Lianmuqin |
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.
Dinosaurs of the Lianmuqin Formation | ||||||
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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 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 | ![]() | |||
Noripterus | N. complicidens[17] | NW Junggar Basin | ||||
Lonchognathosaurus | L. acutirostris[17] | Southern Junggar Basin | Possible junior synonym of Dsungaripterus weii.[18] |
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. |
Name | Species | Location | Stratigraphic position | Abundance | Notes | Images |
---|---|---|---|---|---|---|
Edentosuchus | E. tienshanensis[21] | NW Junggar Basin |
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
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Notes Uncertain or tentative taxa are in small text; |