Meng-Yin Formation

The Meng-Yin or Mengyin Formation (simplified Chinese: 蒙阴组; traditional Chinese: 蒙陰組; pinyin: Méngyīn Zǔ) is a geological formation in Shandong, China, whose strata date back to the Berriasian and Valanginian stages of the Early Cretaceous.[1][2]

Meng-Yin Formation
Stratigraphic range: Berriasian-Valanginian
~
TypeGeological formation
Lithology
PrimarySandstone
OtherSiltstone
Location
Coordinates35.9°N 118.0°E / 35.9; 118.0
Approximate paleocoordinates36.9°N 120.2°E / 36.9; 120.2
RegionShandong
Country China
Meng-Yin Formation (China)
Meng-Yin Formation (Shandong)

Dinosaur remains are among the fossils that have been recovered from the formation.[3] The type material for the titanosauriform dinosaur Euhelopus was excavated at this formation by Otto Zdansky in 1923, in green/yellow sandstone and green/yellow siltstone that were deposited during the Barremian or Aptian stages of the Cretaceous period, approximately 129 to 113 million years ago.[4]

Both the genus and species of Mengyinaia mengyinensis were named after the formation.

Vertebrate paleofauna

Indeterminate stegosaurid remains have been found in Shandong, China.[3]

Vertebrates from the Meng-Yin Formation
GenusSpeciesLocationStratigraphic positionMaterialNotesImages
Euhelopus[3] E. zdanskyi[3] Shandong[3] "Skull and partial postcranial skeleton, additional fragmentary skeleton."[5]
Mengshanosaurus M. minimus A choristodere belonging to Neochoristodera

Other fossils
  • Mengyinaia mengyinensis[6]
Fish
Reptiles

See also

References
  1. Mengyin Formation at Fossilworks.org
  2. Wilson & Upchurch, 2009
  3. Weishampel et al., 2004, "Dinosaur distribution (Late Jurassic, Asia).", pp.550–552
  4. T'an, 1923
  5. "Table 13.1," in Weishampel et al., 2004, p.262
  6. Fang et al., 2009
  7. Young, 1961

Bibliography
  • Fang, Z. J.; J. H. Chen; C. Z. Chen; J. G. Sha; X. Lan, and S. Z. Wen. 2009. Supraspecific taxa of the Bivalvia first named, described, and published in China (1927-2007). The University of Kansas Paleontological Contributions 17. 1–157.
  • Wilson, Jeffrey A., and Paul Upchurch. 2009. Redescription and reassessment of the phylogenetic affinities of Euhelopus zdanskyi (Dinosauria:Sauropoda) from the Early Cretaceous of China. Journal of Systematic Palaeontology 7. 199–239. doi:10.1017/S1477201908002691
  • Young, C.-C. 1961. On a new crocodile from Chuhsien, E. Shantung. Vertebrata PalAsiatica 5. 6–10.
  • Wiman, C. 1929. Die Kreide-Dinosaurier aus Shantung - The Cretaceous dinosaurs of Shantung. Palaeontologia Sinica, Series C 6. 1–67.
  • T'an, H. C.. 1923. New research on the Mesozoic and early Tertiary geology in Shantung. Geological Survey of China Bulletin 5. 95–135.
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