Bolaspidella drumensis

Bolaspidella drumensis trilobites from Drum Mountains Utah

Name: Bolaspidella drumensis
Trilobite Order Ptychopariida, Family Menomoniidae
Age: Middle Cambrian
Locality: Drum Mountains, Pierson Cove Formation, Millard County, Utah
Size: 10 mm
Credits: Fossil Mall
Note: As far as we know Bolaspidella drumensis has never been reported from the Marjum Formation of the House Range and only occurs in the Drum Mountains where it is found in both the Pierson Cove and the Wheeler Formations. There is much debate on where the boundary between the Piersons Cove and the Wheeler formation actually is.