Luohandong Formation

The Luohandong Formation is an Early Cretaceous geologic formation of the Ordos Basin in Inner Mongolia, China. The formation was initially dated to the earliest Cretaceous; Valanginian to Barremian, but later dating established an Aptian to Albian age. Dinosaur remains are among the fossils that have been recovered from the formation.^[1] Pterosaur fossils have also been recovered from the formation.

Luohandong Formation
Stratigraphic range: Aptian-Albian ~120–110 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Zhidan Group
Lithology
Primary	Sandstone
Location
Coordinates	38.9°N 108.1°E / 38.9; 108.1
Approximate paleocoordinates	39.9°N 110.5°E / 39.9; 110.5
Region	Inner Mongolia
Country	China
Extent	Ordos Basin
Luohandong Formation (China)

Fossil content

Vertebrates

• Ikechosaurus sunailinae
• Ordosipterus planignathus^[2]
• Otogopterus haoae^[3]
• Shantungosuchus hangjinensis
• Wuerhosaurus ordosensis^[4]
• Ordosemys leios
• Sinemys gamera
• Eotomistoma sp.
• Psittacosaurus sp.
• Sinamia sp.
• Iguanodontidae indet.
• Mammalia indet.
• Neosuchia indet.
• Psittacosauridae indet.
• Pterosauria indet.
• Sauropoda indet.
• Stegosauria indet.

Insects

• Dataiphis coniferis
• Fuxiaeschna hsiufunia

See also

• List of dinosaur-bearing rock formations
• List of pterosaur-bearing stratigraphic units