The Dongpo Formation is an Ediacaran aged geologic formation in the Henan Province of Central China. It is also fossiliferous in nature, containing fossils which date it to the Nama assemblage.
The Dongpo Formation can be found within the North China Craton, currently amongst the oldest known cratons in the world, alongside its southern edge. The formation itself is primarily composed of yellowish-green shale, siltstone, and fine-grained sandstone.
It is unconformably overlain by the sandstone Cambrian aged Xinji Formation, meanwhile it is conformably underlain by the older glacial Luoquan Formation.
The formation is dominated by macroalgae forms, like Glomulus, alongside tubular forms such as Wutubus and Shaanxilithes. There are also some Ediacaran-type fossils, and some rare trace fossils, all of which has helped to constrain the age of the formation to the terminal Ediacaran, between and .
The reported frondose forms from the formation have had their biotic origins put into question, as some researchers suggest that they may actually be chevron marks produced by clasts being transported above the seabed, due to their similarity with other tool marks found in other formations, such as the Carboniferous aged Gull Island Formation in Ireland.