Klaxosaur
Klaxosaurs are the giant creatures in Darling in the FranXX that attack Plantations. Classified by size (Conrad-class, Mohorovičić-class, Gutenberg-class, Super Lehmann-class). FranXX units are made from Klaxosaur skeletal material. Their true role as Earth’s defence against VIRM is revealed later. The Klaxo Sapiens created them.