†Jeffersonia timon Billings 1865 (trilobite)
Trilobita - Proetida - Bathyuridae
Alternative combinations: Bathyurina timon, Bathyurus timon
Belongs to Jeffersonia according to W. D. Boyce 1989
Sister taxa: Jeffersonia bridgei, Jeffersonia granosa, Jeffersonia jenni, Jeffersonia ulrichi
Type specimen: GSC 636, a pygidium
Ecology: fast-moving low-level epifaunal deposit feeder