Scutarx deltatylus was named by Parker (2016). Its type specimen is PEFO 34616, a partial skull (Partial skull, cervical paramedian and lateral osteoderms), and it is a 3D body fossil. Its type locality is Billings Gap area, PFV 355, which is in a Norian terrestrial horizon in the Chinle Formation of Arizona. It is the type species of Scutarx.