The Barun Goyot Formation, dating from the Late Cretaceous Period, is located within and is widely represented in the Gobi Desert basin, in the Ömnögovi Province of Mongolia.

It was previously known as the "Lower Nemegt Beds", occurring beneath the Nemegt Formation and above the Djadokhta Formation. It is approximately 4 inches in thickness and was laid down roughly 80-71 mya, making it uncertain whether it should be classed as Campanian or Maastrichtian, although the latter is less likely. The Barun Goyot Formation preserves an environment of sand dunes, created from wind-eroded rocks (aeolian dunes).

Fauna

Birds and other theropods

Theropod dinosaurs of the Barun Goyot Formation
Taxa	Presence	Description	Images
Genus: Avimimus Avimimus portentosus		An oviraptorosaur.	Ingenia Conchoraptor Velociraptor
Genus: Conchoraptor Conchoraptor gracilis		An oviraptorid.
Genus: Gobipteryx Gobipteryx minuta		An enantiornithine.
Genus: Hulsanpes Hulsanpes perlei		A maniraptoran of uncertain classification.
Genus: Ingenia Ingenia yanshini		An oviraptorid.
Genus: Nanantius Nanantius valifanovi		An enantiornithine.
Genus: Parvicursor Parvicursor remotus		An alvarezsaurid.
Genus: Velociraptor Velociraptor sp.		A dromaeosaurid

Lizards

Mammals

Ornithischians

Ornithischian dinosaurs of the Barun Goyot Formation
Taxa	Presence	Description	Images
Genus: Bagaceratops Bagaceratops rozhdestvenskyi		A ceratopsian.	Bagaceratops Saichania
Genus: Breviceratops Breviceratops kozlowskii		A ceratopsian.
Genus: Lamaceratops Lamaceratops tereschenkoi		A ceratopsian.
Genus: Platyceratops Platyceratops tatarinovi		A ceratopsian.
Genus: Saichania Saichania chulsanensis		An ankylosaur.
Genus: Tarchia Tarchia gigantea		An ankylosaur.
Genus: Tylocephale Tylocephale gilmorei		A pachycephalosaur.

Sauropods

See also

• List of fossil sites (with link directory)
• List of dinosaur-bearing rock formations

es:Formación Barun Goyot