†family Cephalaspididae Agassiz 1844 (vertebrate)
Osteostraci - Cephalaspidiformes - Cephalaspididae
Synonym: Cephalaspidae Huxley 1861
Parent taxon: Cephalaspidoidei according to R. van der Laan 2019
See also Bryant 1933, Gardiner 1966, Hay 1902, Huxley 1861, Janvier 1985 and Moy-Thomas and Mile 1971
Sister taxa: Parameteoraspididae, Superciliaspididae
Subtaxa: Cephalaspis Eukeraspis
Type: Cephalaspis
Ecology:
Distribution:
• Devonian of Canada (10: New Brunswick, Northwest Territories, Nova Scotia, Nunavut, Quebec collections), Norway (8), Ukraine (4), the United Kingdom (14), United States (2: Wyoming)
• Silurian of Lithuania (1), the United Kingdom (1)
Total: 40 collections including 44 occurrences