THE “METACRYPHAEUS TUBERCULATUS GROUP” (TRILOBITA, CALMONIIDAE) FROM THE DEVONIAN OF THE PARNAÍBA BASIN, BRAZIL. AMGH [Internet]. 2016 Aug. 2 [cited 2025 Oct. 4];53(4):463-72. Available from: https://ameghiniana.org.ar/index.php/ameghiniana/article/view/2924