IRMNG Taxon list
Azyptyx toongabbiensis Holloway, 1991 †
Boeckia descendens Clark †
Ceraurinus icarus Chugaeva, 1963 †
Cerauroides hawlei (Barrande, 1852) †
Ceraurus pleurexanthemus Green, 1832 †
Cheirurus bimucronatus †
Cheirurus centralis Salter, 1853 †
Cheirurus elongatus Reed †
Cheirurus gibbus Beyrich, 1845 †
Cheirurus insignis Beyrich, 1845 †
Cheirurus quenstedti (Barrande) †
Cheirurus silverdalensis Etheridge & Mitchell †
Cheirurus sternbergi (Boeck, 1827) †
Crotalocephalus gibbus †
Deiphon barrandei †
Deiphon forbesi Barrande, 1850 †
Didrepanon gutnicum Kamskold, 1983 †
Didrepanon squarresum (Zenker, 1833) †
Didrepanon squarrosum (Zenker, 1833) †
Krattaspis viripatus Öpik, 1937 †