The Echkar Formation is a geological formation comprising sandstones and claystones in the Agadez Region of Niger, central Africa.
| Echkar Formation | |
|---|---|
| Stratigraphic range: Late Albian-Cenomanian ~ | |
| Type | Geological formation |
| Unit of | Tegama Group |
| Underlies | Farak Formation |
| Overlies | Elrhaz Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Claystone |
| Location | |
| Coordinates | 17°54′N 5°36′E / 17.9°N 5.6°E |
| Approximate paleocoordinates | 2°48′N 0°24′E / 2.8°N 0.4°E |
| Region | Agadez Region |
| Country |  Niger |
| Extent | Iullemmeden Basin |
| Type section | |
| Named for | Echkar, Aderbissinat |
  Echkar Formation (Niger) | |
Description
Its strata date back to the Late Albian to Late Cretaceous (Cenomanian stages, about 100-95 million years ago). Dinosaur remains are among the fossils that have been recovered from the formation.[1]
Fossil content
Vertebrates
| Archosaurs | ||||
|---|---|---|---|---|
| Genus | Species | Material | Notes | Images |
| Aegyptosaurus | A. baharijensis |  | ||
| Araripesuchus | A. rattoides |  | ||
| Bahariasaurus | B. ingens |  | ||
| Carcharodontosaurus[3] | C. iguidensis[4] C. saharicus[2] |  | ||
| Ceratodus | C. sp. |  | ||
| Elaphrosaurus | E. iguidiensis (=Theropoda indet.) | Likely an indeterminate theropod. |  | |
| Elosuchus | E. sp. |  | ||
| Fortignathus | F. felixi | |||
| Inosaurus | I. tedreftensis | |||
| Kaprosuchus | K. saharicus |  | ||
| Laganosuchus | L. thaumastos |  | ||
| Lepidotes | L. sp. |  | ||
| Onchopristis | O. numida |  | ||
| Platyspondylus | P. foureaui | |||
| Rebbachisaurus | R. tamesnensis R. sp.[citation needed] |  | ||
| Rugops | R. primus | .png) | ||
| Spinosaurus | S. aegyptiacus |  | ||
| ?Stegosauria indet. | No genus given. May not actually belong to Stegosauria. | |||
| Testudines indet. | No genus given. | |||
See also
References
Bibliography
- Young, Mark T.; Alexander K. Hastings; Ronan Allain, and Thomas J. Smith. 2017. Revision of the enigmatic crocodyliform Elosuchus felixi de Lapparent de Broin, 2002 from the Lower–Upper Cretaceous boundary of Niger: potential evidence for an early origin of the clade Dyrosauridae. Zoological Journal of the Linnean Society 179. 377–403. .
Further reading
- A. F. d. Lapparent. 1953. Gisements de Dinosauriens dans le "Continental intercalaire" d'In Abangarit (Sahara méridional) [Dinosaur localities in the "Continental Intercalaire" of In Abangarit (southern Sahara)]. Comptes Rendus de l'Académie des Sciences à Paris 236:1905-1906
- P. C. Sereno, J. A. Wilson, and J. L. Conrad. 2004. New dinosaurs link southern landmasses in the mid-Cretaceous. Proceedings of the Royal Society of London B 271(1546):1325-1330
🔥 Top keywords: Main PageSpecial:SearchPage 3Wikipedia:Featured picturesHouse of the DragonUEFA Euro 2024Bryson DeChambeauJuneteenthInside Out 2Eid al-AdhaCleopatraDeaths in 2024Merrily We Roll Along (musical)Jonathan GroffJude Bellingham.xxx77th Tony AwardsBridgertonGary PlauchéKylian MbappéDaniel RadcliffeUEFA European Championship2024 ICC Men's T20 World CupUnit 731The Boys (TV series)Rory McIlroyN'Golo KantéUEFA Euro 2020YouTubeRomelu LukakuOpinion polling for the 2024 United Kingdom general electionThe Boys season 4Romania national football teamNicola CoughlanStereophonic (play)Gene WilderErin DarkeAntoine GriezmannProject 2025