Holotype: Male, Gaspé Peninsula, Quebec, Canada, July 1939 (CNC).
One of the most striking features of the piercedaspid fish is their armor plating. Their heads and bodies were covered in bony plates, which provided protection against predators. These plates were made of dentine, a type of bone that is also found in modern fish. piercedaspid
The piercedaspid is considered one of the most primitive vertebrates known to date. Its fossil record provides important evidence of the early evolution of vertebrates, and its study has helped scientists to better understand the development of key characteristics such as the vertebral column, skull, and sensory systems. Holotype: Male, Gaspé Peninsula, Quebec, Canada, July 1939