sagittal crest


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sag·it·tal crest

a prominent ridge along the sagittal suture of the skull, present in some animals as a result of temporal muscle development.
References in periodicals archive ?
"And if sagittal crest size and social behavior are linked in this way, then we could potentially establish that some of our extinct human relatives had a gorilla-like social system," lead researcher Katharine Balolia said in a statement from (http://www.anu.edu.au/news/all-news/study-could-provide-first-clues-about-the-social-lives-of-extinct-human-relatives) Australian National University .
One particular feature is the presence of a smooth sagittal crest on the ventral face that is just shared by MG 4804 from Salir de Matos (Caldas da Rainha).
The large number of teeth, pronounced sagittal crest (ridge) on the top of the skull, and the overall shape, identify the larger skull as an opossum.