Omingonde Formation, Geological formation in Erongo Region, Namibia.
The Omingonde Formation is a geological sequence in the Erongo Region with a thickness of about 600 meters. It is made up of various sedimentary rocks including sandstone, shale, siltstone, and conglomerate that were deposited in ancient river systems.
The formation developed during the Early to Middle Triassic through sedimentary processes and became part of the extensive Karoo Supergroup system. This era shaped the geological history of the southern Gondwana continents.
The name comes from a water well near Mount Etjo and shows how closely geology here connects to water sources. Such place names reflect how local communities and scientists have long understood and named the landscape.
The best exposures are found south of the Waterberg thrust where researchers can access the rock layers relatively easily. The terrain is rocky and requires proper footwear plus care when moving across uneven ground.
The formation is known for fossils of therapsids and amphibians from the Cynognathus Assemblage Zone that connect African and South American landmasses. These fossils show that such species once lived across different continents and help scientists understand ancient continental arrangements.
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