Meng-Yin Formation
Geological formation in Shandong, China
| Meng-Yin Formation | |
|---|---|
| Stratigraphic range: Berriasian-Valanginian ~145–133 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone |
| Location | |
| Coordinates |   Meng-Yin Formation (China) Show map of China Meng-Yin Formation (Shandong) Show map of Shandong |
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]
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 | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Euhelopus[3] | E. zdanskyi[3] | Shandong[3] | "Skull and partial postcranial skeleton, additional fragmentary skeleton."[5] |  | ||
| Mengshanosaurus | M. minimus | A single juvenile skull | A choristodere belonging to Neochoristodera | |||
Other fossils
- Mengyinaia mengyinensis[6]
- Fish
- Reptiles
- Ordosemys leios
- Shantungosuchus chuhsienensis[8]
- Sinemys lens
- Sinochelys applanata
- ?Dsungaripteridae indet.
- Stegosauria indet.
See also
References
- ^ Mengyin Formation at Fossilworks.org
- ^ Wilson & Upchurch, 2009
- ^ a b c d e Weishampel et al., 2004, "Dinosaur distribution (Late Jurassic, Asia).", pp.550–552
- ^ T'an, 1923
- ^ "Table 13.1," in Weishampel et al., 2004, p.262
- ^ Fang et al., 2009
- ^ XU, GUANG-HUI; CHANG, MEE-MANN (2009). "Redescription of †Paralycoptera wuiChang & Chou, 1977 (Teleostei: Osteoglossoidei) from the Early Cretaceous of eastern China". Zoological Journal of the Linnean Society. 157 (1): 83–106. doi:10.1111/j.1096-3642.2009.00532.x. ISSN 0024-4082.
- ^ Young, 1961
Bibliography
- Fang, Z. J.; Chen, J. H.; Chen, C. Z.; Sha, J. G.; Lan, X.; Wen, S. Z. (2009), "Supraspecific taxa of the Bivalvia first named, described, and published in China (1927-2007)", The University of Kansas Paleontological Contributions, New Series, 17: 1–157
- Wilson, Jeffrey A.; Upchurch, Paul (2009), "Redescription and reassessment of the phylogenetic affinities of Euhelopus zdanskyi (Dinosauria:Sauropoda) from the Early Cretaceous of China", Journal of Systematic Palaeontology, 7 (2): 199–239, Bibcode:2009JSPal...7..199W, 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
