An article published in “Journal of Systematic Palaeontology” reports the identification of a new species of trilobites that lived about 500 million years ago, in the Cambrian period. A team of researchers examined fossils discovered in the Emu Bay Shale, on Kangaroo Island, Australia, finding in some specimens characteristics that were different from the majority identified in the species Redlichia takooensis. Due to their size considerable for trilobites, with lengths that could reach 30 cm, and due to their predator characteristics, they decided to name the new species Redlichia rex, similarly to T.rex.