page_title: Igdamanosaurus
section_title: Description
hierarchical_section_title: Igdamanosaurus / Description
caption_attribution_description: Français&#160;: dent de Globidens aegyptiacus et dent de Mosasaurus beaugei montrant les cavités de la dent de remplacement
context_page_description: Igdamanosaurus, meaning "lizard from Igdaman", is an extinct genus of Cretaceous marine lizard belonging to the mosasaur family. It is classified as part of the Globidensini tribe, and is like the other members of the tribe recognised by its rounded and knob-like teeth. These teeth indicate a highly specialized lifestyle, likely including a durophagous diet.
  The genus contains a single species, Igdamanosaurus aegyptiacus, from Maastrichtian-aged marine environments of Africa. Its fragmentary fossil remains have been recovered from the Duwi Formation of Egypt, Ouled Abdoun Basin of Morocco, and the Dukamaje Formation of Niger.
context_section_description: Igdamanosaurus was a small durophagous mosasaur at a size roughly similar to the closely related globidensin Carinodens. Its fossils preserve blunt, rounded teeth similar to those of the other members of the Globidensini. These teeth were better suited for crushing armored prey like molluscs and turtles, rather than fish or other reptiles normally preyed on by other mosasaurs.
  The type specimen, BMNH R11898, is fragmentary and consists of three poorly preserved jaw fragments, two almost complete finely striated teeth, three tooth bases and fragments from at least five broken teeth. Though it is difficult to tell, these remains likely come from the same individual.
  The dentary is noted as being of massive proportions, similar to the massive and robust dentaries found in Globidens and Prognathodon. A medially located shallow recess on the dentary indicates the groove for the splenial.
caption: A side-by-side comparison of the rounded and knob-like tooth of Igdamanosaurus aegyptiacus (left) and the still robust, but considerably more blade-like, tooth of Mosasaurus beaugei (right).
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