The Peninj Mandible(Peninj 1), also called Natron mandible, is the fossilized lower jaw and teeth of an australopithecine specimen, likely that of Australopithecus boisei or a similar population. It was discovered in West Lake Natron, in Ngorongoro District of Arusha Region of Tanzania by Kamoya Kimeu, Glynn Isaac, and Richard Leakey in 1964.
The Dukamaje Formation is a geological formation in Niger and Nigeria whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. A wealth of Mosasaur fossils have also been recovered from this formation, particularly from the area around Mt. Igdaman.
The Ankarafantsika Formation is a Late Cretaceous (Cenomanian) geologic formation of the Mahajanga Basin in the Boeny region of Madagascar, Africa. The fine-grained sandstones of the formation were deposited in a fluvial to lacustrine environment.
The Grainger Formation is a geologic formation in Tennessee, Kentucky, and Virginia. It preserves fossils dating back to the early Mississippian subperiod of the Carboniferous period.
The Tongue River Member is the uppermost geologic member of the Fort Union Formation in Montana, North Dakota, Wyoming. The strata are yellow or light-colored massive sandstones and numerous thick coal beds.
The Kwataboahegan Formation is a geologic formation in the Moose River and Hudson Bay basins in northern Ontario, containing fossils from the Lower to Middle Devonian period. It is characterized by brown bituminous stromatoporoid-coral floatstone to bindstone and stromatoporoid-coral-crinoid wackestone-packstone-rudstones, interbedded with light grey, bioclastic wackestone-packstone.
The Schrambach Formation is a geologic formation in the Northern Limestone Alps of Austria and Germany. It preserves fossils dating back to the Early Cretaceous period.
The geology of Tanzania began to form in the Precambrian, in the Archean and Proterozoic eons, in some cases more than 2.5 billion years ago. Igneous and metamorphic crystalline basement rock forms the Archean Tanzania Craton, which is surrounded by the Proterozoic Ubendian belt, Mozambique Belt and Karagwe-Ankole Belt. The region experienced downwarping of the crust during the Paleozoic and Mesozoic, as the massive Karoo Supergroup deposited. Within the past 100 million years, Tanzania has experienced marine sedimentary rock deposition along the coast and rift formation inland, which has produced large rift lakes. Tanzania has extensive, but poorly explored and exploited natural resources, including coal, gold, diamonds, graphite and clays.
Olduvai Formation 
Peninj Gorge Group 
Pemba Formation 
Wembere-Manonga Formation 
Nsungwe Formation 
Kilwa Group and Kingongo Marl 
Galula Formation 
Tendaguru Formation 
Tanga Limestone 
Manda Formation 
Middle Tanga Formation 
Hatambulo Formation 
Olduvai Formation 
Peninj Gorge Group 
Pemba Formation 
Wembere-Manonga Formation 
Nsungwe Formation 
Kilwa Group and Kingongo Marl 
Galula Formation 
Tendaguru Formation 
Tanga Limestone 
Manda Formation 
Middle Tanga Formation 
Hatambulo Formation 
