Trilobita - Proetida - Bathyuridae

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, Licnocephala, Madaraspis, Peltabellia, Petigurus, Pseudoolenoides, Punka, Rananasus, Randaynia, Raymondites, Strigigenalis, Uromystrum

Subtaxa: Jeffersonia bridgei, Jeffersonia granosa, Jeffersonia jenni, Jeffersonia timon, Jeffersonia ulrichi

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Ecology: fast-moving low-level epifaunal deposit feeder