Halkieriids are an extinct group of organisms known from Cambrian fossils. They are mainly found as isolated shelly scales, but exceptional fossil discoveries have shown that halkieriid animals resembled slugs covered in chain mail.
Halkieriids are an extinct group of organisms known from Cambrian fossils. They are mainly found as isolated shelly scales, but exceptional fossil discoveries have shown that halkieriid animals resembled slugs covered in chain mail.