| 词条 | El Mers Formation |
| 释义 |
| name = El Mers Formation | period = Callovian | age = {{fossilrange|Bathonian|Callovian}} | image = | imagesize = | caption = | type = Geological formation | prilithology = Claystone | otherlithology = | unitof = | subunits = | underlies = Iouaridene Formation | overlies = Tilougguit Formation | thickness = | area = | map = | map_caption = | location = | coordinates = | region = Africa | country = {{flag|Morocco}} | extent = High Atlas | namedfor = | namedby = | year_ts = | location_ts = | coordinates_ts = | paleocoordinates_ts = | region_ts = | country_ts = | thickness_ts = }} The El Mers Formation is a geological formation in the High Atlas of Morocco. It is a marine deposit consisting of claystone and is the lateral equivalent of the terrestrial Guettioua Sandstone. The sauropod dinosaur "Cetiosaurus" mogrebiensis has been found in the formation.[1] References{{portal|Geology|Jurassic|Prehistory of Africa}}1. ^{{Cite journal|last=Allain|first=Ronan|last2=Aquesbi|first2=Najat|date=2008|title=Anatomy and phylogenetic relationships of Tazoudasaurus naimi (Dinosauria, Sauropoda) from the late Early Jurassic of Morocco |url=http://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2008n2a5.pdf |journal=Geodiversitas |volume=30 |issue=2 |pages=345-424}} {{Africa-geologic-formation-stub}} 5 : Geologic formations of Morocco|Jurassic System of Africa|Bathonian Stage|Callovian Stage|Shale formations |
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