The Meng-Yin or Mengyin Formation () is a geological formation in Shandong, China, whose strata date back to the Berriasian and Valanginian stages of the Early Cretaceous.Mengyin Formation at Fossilworks.orgWilson & Upchurch, 2009
Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, "Dinosaur distribution (Late Jurassic, Asia).", pp.550–552 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.T'an, 1923
Both the genus and species of Mengyinaia mengyinensis were named after the formation.
Vertebrate paleofauna Indeterminate stegosaurid remains have been found in Shandong, China.
Vertebrates from the Meng-Yin Formation Genus Species Location Stratigraphic position Material Notes Images Euhelopus E. zdanskyi Shandong "Skull and partial postcranial skeleton, additional fragmentary skeleton.""Table 13.1," in Weishampel et al., 2004, p.262 Mengshanosaurus M. minimusA single juvenile skullA choristodere belonging to Neochoristodera
Other fossils Mengyinaia mengyinensisFang et al., 2009 Fish
Sinamia zdanskyi Paralycoptera wui Lycoptera sp.
Reptiles
Ordosemys leios Shantungosuchus chuhsienensisYoung, 1961 Sinemys lens Sinochelys applanata ?Dsungaripteridae indet. Stegosauria indet.
See also List of dinosaur-bearing rock formations
References
Bibliography