Quantou Formation

The Quantou Formation is a Cretaceous Period (Mesozoic Era) geologic formation in China. It is primarily Albian in age.^[1] It has been explored for its potential as a tight oil reservoir.^[2][3]

Quantou Formation
Stratigraphic range: Aptian to Early Cenomanian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Songliao Basin
Sub-units	First through Fourth Members
Underlies	Qingshankou Formation
Overlies	Denglouku Formation
Thickness	190 to 1379 m
Lithology
Primary	Sandstone
Other	Mudstone
Location
Region	Jilin
Country	China

Dinosaur remains are among the fossils that have been recovered from the formation.^[4]

Fossil content

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ornithopods

Ornithopods of the Quantou Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Changchunsaurus	C. parvus				A thescelosaurid ornithopod
Helioceratops	H. brachygnathus				A archaeoceratopsid ceratopsian

Sauropods

Sauropods of the Quantou Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Jiutaisaurus	J. xidiensis				A titanosauriform sauropod

Theropods

Theropods of the Quantou Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Dromaeosauridae Indet.[5]	Indeterminate

See also

• List of dinosaur-bearing rock formations