Zuul crurivastator Sauroposeidon This morphology suggests that Irritator

This morphology suggests that Irritator was piscivorous

The paleoenvironment where it lived was very different from present-day Peru

and suggests a different evolutionary lineage within ankylosaurs

It lacked functional teeth as an adult

as the distinction between ontogenetic variation and actual taxonomic differences in tyrannosaurids is complex

Zuul crurivastator Sauroposeidon This morphology suggests that IrritatorZuul crurivastator es un dinosaurio anquilosaurino herbvoro del Campaniense del Cretcico Superior (aproximadamente 76,275,2 millones de aos atrs) que ha aportado datos morfolgicos y paleoecolgicos de alto valor gracias a un espcimen excepcionalmente completo recientemente descrito. Fue hallado en la Formacin Judith River, en el norte de Montana (Estados Unidos), y su conservacin extraordinaria incluye crneo completo, maza caudal, osteodermos en