Day 11 of Jurassic June belongs to Rugops, an abelisaurid dinosaur from the Cretaceous of Africa. Its name means "wrinkled face" and it was only known from a skull, described by Paul Sereno.
Ref for the skull: https://paulsereno.uchicago.edu/exhibits_casts/african_dinosaurs/rugops/ …
Color ref I will use (I cannot find the artist anywhere, but they worked on the Jurassic Park Institute website in the mid 2000s according to Tumblr): https://pbs.twimg.com/media/D9m1wFNU8AAzznw.png:large
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