Trilobita - Proetida - Bathyuridae

Parent taxon: Bathyuridae according to P. A. Jell and J. M. Adrain 2003

Sister taxa: Acidiphorus, Bathyurellinae, Bathyurellus, Bathyurina, Bathyurinae, Benthamaspis, Bolbocephalus, Catochia, Eleutherocentrus, Ermanella, Grinnellaspis, Jeffersonia, Licnocephala, Madaraspis, Peltabellia, Petigurus, Pseudoolenoides, Punka, Rananasus, Randaynia, Raymondites, Strigigenalis, Uromystrum

Subtaxa: Bathyurus acutus, Bathyurus angustus, Bathyurus esbataottinensis, Bathyurus eskimoensis, Bathyurus extans, Bathyurus granulosus, Bathyurus mackenziensis, Bathyurus margareti, Bathyurus nevadensis, Bathyurus platyparius, Bathyurus sunbloodensis, Bathyurus superbus, Bathyurus ulu

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Type: Asaphus extans

Ecology: fast-moving low-level epifaunal deposit feeder