Trilobita - Proetida - Bathyuridae
Full reference: R. A. Fortey. 1979. Early Ordovician trilobites from the Catoche Formation (St. George Group), western Newfoundland. Geological Survey of Canada Bulletin 321:61-114
Parent taxon: Bathyuridae according to P. A. Jell and J. M. Adrain 2003
Sister taxa: Acidiphorus, Bathyurellinae, Bathyurellus, Bathyurina, Bathyurinae, Bathyurus, Benthamaspis, Bolbocephalus, Catochia, Eleutherocentrus, Ermanella, Grinnellaspis, Jeffersonia, Licnocephala, Madaraspis, Peltabellia, Petigurus, Pseudoolenoides, Rananasus, Randaynia, Raymondites, Strigigenalis, Uromystrum
Subtaxa: Punka akoura, Punka caecata, Punka flabelliformis, Punka nitidus, Punka verecunda
Type: Bathyurellus nitidus
Ecology: fast-moving low-level epifaunal deposit feeder