Majiacun Formation

The Majiacun Formation is a Santonian to Coniacian geologic formation in China.^[1] Dinosaur remains are among the fossils that have been recovered from the formation.

Majiacun Formation
Stratigraphic range: late Coniacian-late Santonian ~86–85 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Location
Type	Geological formation
Sub-units	Unit 2
Underlies	Sigou Formation
Overlies	Gaogou Formation
Lithology
Primary	Mudstone, siltstone
Other	Sandstone, conglomerate
Location
Coordinates	33.2°N 111.8°E / 33.2; 111.8
Approximate paleocoordinates	33.2°N 104.3°E / 33.2; 104.3
Region	Henan, Hubei
Country	China
Extent	Xixia Basin
Majiacun Formation (China) Show map of China Majiacun Formation (Henan) Show map of Henan

Paleofauna

• Bactrosaurus^[2] (remains originally known as Bakesaurus)^[3][4]
• Mosaiceratops azumai^[5]
• Xixiasaurus henanensis^[6]
• Xixianykus zhangi^[7]
• Yunxianosaurus hubeinensis^[8][3]
• Zhanghenglong yangchengensis^[9]
• Theropoda indet. (Allosauroidea or Abelisauridae indet.?;^[10] originally attributed to Baryonychinae indet.^[11])

Fossil eggs

• Dendroolithus sanlimiaoensis^[12]
• Prismatoolithus gebiensis^[13]
• Ovaloolithus sp.^[14]
• Spheroolithus sp.^[12][14]
• Nanyangosaurus zhugeii^[14]
• Youngoolithus xiaguanensis^[14]

Ichnofossils

• Scoyenia sp.^[12]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera