The "tyrant lizard king" has finally arrived at Cotton Crustacean and he's not happy about the pesky pterosaurs already trying to scare him off! Tyrannosaurus rex vs. Nyctosaurus gracilis features two North American species; everyone's favorite terrible lizard king, the T-rex, who also happens to be the first true dinosaur we've had printed on a shirt; and the small, strange looking, pescatarian pterosaurs known as Nyctosaurus gracilis, harassing him as he stalks the coast li