Two new species of scutelluid trilobites formerly known as Scutellum costatum from Frasnian bioherms in Belgium

Scutellum decipulum n. sp. and Scutellum protrusifrons n. sp. are described from the Frasnian Moulin Liénaux and Grands Breux Formations respectively in the Couvin area. Until recently, scutelluids from this time interval in Belgium were commonly identified as the Polish species Scutellum costatum PUSCH but these assignments are now revised. Scutellum is poorly defined so that present assignments to this genus remain open for debate.