The Echkar Formation is a geological formation comprising sandstones and claystones in the Agadez Region of Niger, central Africa.
The Wadi Milk Formation is a geological formation in Sudan whose strata date back to the Late Cretaceous. Originally, the formation was thought to be Albian to Cenomanian, later research has provided dating to the Campanian to Maastrichtian. Dinosaur remains are among the fossils that have been recovered from the formation. It stretches from the lower Wadi Al-Malik across the Wadi Muqaddam into the Bayuda Desert.
The In Beceten Formation, also Beceten or Ibecten is a Coniacian to Santonian geologic formation in the Iullemmeden Basin of Niger. It has yielded a diverse fauna and some angiosperms. Among others, it has yielded polypterifoms, urodeles, anurans, and turtles. Dinosaur remains are among the other fossils that have been recovered from the formation, although none have yet been referred to a specific genus. The lithology primarily consists of clays, fine limestones and sandy clays.
The Irhazer Shale or Irhazer II Formation is a Middle Jurassic geologic formation of the Irhazer Group in the Agadez Region of Niger. Fossil ornithopod tracks have been reported from the formation. The dinosaur Spinophorosaurus is known from the formation.
The Sierra Madre Formation is a geologic formation in Chiapas state, southern Mexico. It consists of marine dolomites and limestones. The formation dates to the Middle Cretaceous, spanning from the Aptian of the Early to the Cenomanian of the Late Cretaceous.
Coniophis is an extinct genus of snakes from the late Cretaceous period. The type species, Coniophis precedes, was about 7 cm long and had snake-like teeth and body form, with a skull and a largely lizard-like bone structure. It probably ate small vertebrates. The fossil remains of Coniophis were first discovered at the end of the 19th century in the Lance Formation of the US state of Wyoming, and were described in 1892 by Othniel Charles Marsh. For the genus Coniophis, a number of other species have been described. Their affiliation is, however, poorly secured, mostly based on vertebrae descriptions from only a few fossils.
The Normandien Formation is a Triassic-age rock formation located in Free State, South Africa. It is where the fossils of Ericiolacerta, a subtaxa of Ericiolacertidae, were found.
Nigerophiidae is an extinct family of marine snakes known from the Late Cretaceous to the Paleogene. Species of this family were found throughout much of the former Tethys Ocean. Their taxonomic identity is uncertain due to their fragmentary remains. The earliest nigerophiid is Nubianophis from the Campanian of Sudan.
Nubia Formation 
Abu Imama Formation 
Wadi Milk Formation 
Shendi Formation 
Wadi Howar Formation 
Bentiu & Abu Gabra Formations 
Nubia Formation 
Abu Imama Formation 
Wadi Milk Formation 
Shendi Formation 
Wadi Howar Formation 
Bentiu & Abu Gabra Formations 