Occlupanids of the family Tridentidae are relatively common, and their numbers of species are increasing. They are identified by the three dental processes within the oral groove. Some researchers believe that these are actually the result of cross-bred haplognathids and toxodentids, but research is woefully inconclusive.
Admordorsales taceotalus
Admordorsum aotearoa
Admordorsum dominici
Admordorsum floridensis
Admordorsum groningensis
Admordorsum hannibalis
Admordorsum tenvis
Alatilatus hebechela
Arcualatus rubidicax
Arcualatus ripalegus
Captospinula elongatus
Captospinula celsus
Captospinula fecundus
Captospinula liptoni
Captospinula simplistica
Carisma matsumotoi
Carisma paternum
Dinohaptor neglectus
Dinohaptor brutus
Dinonexus capax
Dinonexus custobetarum
Dinonexus gigantus
Gibberosus falx
Gibberosus hamula
Lupustoma ululata
Lupustoma usitatus
Maxistoma uncinata
Nevani spinustratum
Obdorpanem praedulcis
Orectochela bipatens
Orectochela columnaris
Orectochela tacitus
Paximadia prehendus
Peramordeo acies
Peramordeo proteoplacentis
Phoberoceros alpinus
Phoberoceros skeletor
Rubilumina leviathan
Sacculumorsus osculum
Senicornus evanescens
Serrategula amplus
Serrategula cotidianus
Serrategula kartoffelensis
Scalpriscapula mustafa
Scalpriscapula systoma
Sphaeropanis formosa
Sphaeropanis hollandium
Sphaeropanis neohantoniensis
Sphaeropanis yakimaensis
Tenuifalca cancriquetra
Tenuifalca singaporensis
Undulaspina moxidamnata
