Artiopoda - Corynexochida - Illaenidae
Parent taxon: Illaenus according to R. A. Fortey and D. L. Bruton 2013
See also Owen and Bruton 1980
Sister taxa: Deucalion, Illaenus aduncus, Illaenus alveatus, Illaenus angelini, Illaenus auriculatus, Illaenus bayfieldi, Illaenus bucculentus, Illaenus cekovioides, Illaenus consimilis, Illaenus consobrinus, Illaenus crassicauda, Illaenus dalecarlicus, Illaenus fieldi, Illaenus fraternus, Illaenus gelasinus, Illaenus gigas, Illaenus kueichouensis, Illaenus lacertus, Illaenus lautus, Illaenus marginalis, Illaenus oscitatus, Illaenus protuberans, Illaenus renhuaniensis, Illaenus sinensis, Illaenus spiculatus, Illaenus tianrongi, Illaenus tingi, Illaenus tumidifrons, Illaenus usitatus, Illaenus utahensis, Illaenus viator, Illaenus wimani, Actinolobus atavus, Actinolobus americanus
Subtaxa: Illaenus (Parillaenus) dalecarlicus Illaenus (Parillaenus) davisi Illaenus (Parillaenus) fallax Illaenus (Parillaenus) primoticus Illaenus (Parillaenus) roemeri Illaenus (Parillaenus) yohi
Ecology: nektobenthic carnivore
Distribution:
• Ordovician of China (1 collection), Estonia (2), Norway (16), Sweden (5), the United Kingdom (2)
Total: 26 collections including 28 occurrences