Cephalaspis acadica (FOSSIL) R. Robertson, 1936 †
Cephalaspis campbelltonensis (FOSSIL) J.J.F. Whiteaves, 1881 †
Cephalaspis canadensis (FOSSIL) R. Robertson, 1936 †
Cephalaspis dawsoni (FOSSIL) E.R. Lankester, 1870 †
Cephalaspis jexi (FOSSIL) Traquair, 1893 †
Cephalaspis laticeps (FOSSIL) Traquair, 1890 †
Cephalaspis lightbodii (FOSSIL) E.R. Lankester, 1870 †
Cephalaspis lyelli (FOSSIL) (A.E.R. Agassiz, 1835 †)
Cephalaspis murchisoni (FOSSIL) Egerton, 1857 †
Cephalaspis novaescotiae (FOSSIL) Denison, 1955 †
Cephalaspis pagei (FOSSIL) E.R. Lankester, 1870 †
Cephalaspis powriei (FOSSIL) E.R. Lankester, 1870 †
Cephalaspis salweyi (FOSSIL) Egerton, 1857 †
Cephalaspis westolli (FOSSIL) H.D. Russell, 1954 †
Cylindrites angulatus (FOSSIL) P. Morris & J. Lycett,1851 †
Cylindrites blakei (FOSSIL) Cox & Arkell 1950 †
Cylindrites brevispira (FOSSIL) W.H. Hudleston, 1896 †
Cylindrites cylindricus (FOSSIL) Morris & Lycett †
Cylindrites deserti (FOSSIL) J.H.F. Douvillé, 1916 †
Cylindrites pyriformis (FOSSIL) Morris & Lycett †
Cylindrites striatus (FOSSIL) Lissajous, 1923 †
Didymaspis grindrodi (FOSSIL) E.R. Lankester, 1867 †
Eukeraspis pustulifera (FOSSIL) (A.E.R. Agassiz, 1839 †)
Trochactaeonina richardsoni (FOSSIL) R.B. Newton, 1895 †