Order Scleroparei is a taxonomic term used to describe a group of fish species that have hard, bony scales. Some synonyms that can be used instead of Order Scleroparei include Superorder Acanthopterygii, or "spiny-finned fishes," which encompasses a larger group of fish with spiny rays in their fins; or Order Perciformes, which includes a wide variety of fish species with perch-like bodies, including some Scleroparei. Other synonyms include Superorder Teleostei, which includes all modern bony fish species, and Order Beryciformes, which includes some Scleroparei species with extremely bony scales. These taxonomic terms are important for classifying and understanding the diversity of fish species on our planet.