Modocia
weeksensis
Trilobites
Order Ptychopariida, Suborder Ptychopariina, Superfamily
Ptychoparioidea,
Family Marjumiidae
Cedaria minor
Trilobites
Order Ptychopariida, Suborder Ptychopariina, Superfamily Ptychoparioidea,
Family Cedariidae
Geologic
Age: Upper Middle Cambrian
Modocia trilobite on top is 11 mm long
Weeks Formation, House Range, Millard County
Also see: US Trilobites
