The Gres superieurs Formation is a geological formation in Laos whose strata date back to the Early Cretaceous

Early Cretaceous

The Early Cretaceous or the Lower Cretaceous , is the earlier or lower of the two major divisions of the Cretaceous...

. Dinosaur remains are among the fossils that have been recovered from the formation. It is equivalent to the Khok Kruat Formation

Khok Kruat Formation

The Khok Kruat Formation is a rock formation found in northeastern Thailand. It is one of the formations of the Khorat Group. It is of Aptian stage , and is notable for its fossils of dinosaurs...

 of Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

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The Gres superieurs Formation is a geological formation in Laos whose strata date back to the Early Cretaceous

Early Cretaceous

The Early Cretaceous or the Lower Cretaceous , is the earlier or lower of the two major divisions of the Cretaceous...

. Dinosaur remains are among the fossils that have been recovered from the formation.

Vertebrate fauna

The Gres superieurs Formation has also yielded remains of indeterminate iguanodontians, as well as ornithopod

Ornithopod

Ornithopods or members of the clade Ornithopoda are a group of ornithischian dinosaurs that started out as small, bipedal running grazers, and grew in size and numbers until they became one of the most successful groups of herbivores in the Cretaceous world, and dominated the North American...

 and sauropod tracks.

Dinosaur Dinosaur Dinosaurs are a diverse group of animals of the clade and superorder Dinosauria. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous , when the Cretaceous–Paleogene extinction event led to the extinction of... s reported from the Gres superieurs Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Mandschurosaurus Mandschurosaurus Mandschurosaurus is a hadrosaur taxon based on material from the Upper Cretaceous of Belye Kruchi, Manchuria. M. amurensis is based on a poorly preserved and incomplete skeleton collected by Russian scientists in 1914 from the banks of the Amur River...	M. laosensis				An indeterminate iguanodontian.
Tangvayosaurus Tangvayosaurus Tangvayosaurus is a genus of sauropod dinosaur from the Aptian-Albian age Lower Cretaceous Grès Supérior Formation of Savannakhet, Laos...	T. hoffeti			"[Two] partial postcranial skeletons."	A sauropod.
Titanosaurus Titanosaurus Titanosaurus is a genus of sauropod dinosaur, first described by Lydekker in 1877. It is known from the Maastrichtian Lameta Formation of India...	T. falloti				An indeterminate sauropod.

• Sauropod tracks
• Iguanodontia indet (=Mandschurosaurus laosensis)
• Euornithopod tracks