Order Ptychopariida, Family Menomoniidae
Time: Middle Devonian
14 mm long by 7 mm wide
Site: House Range, Weeks Formation, Millard County, Utah
This trilobite is an uncommon member of the family Menomoniidae,
and as such is related to Dresbachia, Nephalicephalus, and Densonella.
click trilobite pictures to enlarge