|Named By:||Louis Agassiz in 1846|
|Time Period:||Early Devonian 415-398 Ma|
|Location:||Western Europe. North America|
|Size:||Approximately 20 to 30 centimetres long|
|Fossil(s):||Many specimens are known|
|Classification:||| Chordata | Osteostraci | Cephalaspidiformes | Cephalaspidae ||
Cephalaspis (meaning "head shield") is a probably monotypic genus of extinct osteostracan agnathan vertebrate. It was a trout-sized detritivorous fish that lived in estuaries of the early Devonian.