Middle Cambrian

Marjum Formation, House Range,

Millard County, UT, USA

50mm x 35mm on 75mm slab.

Arthropod.

Meristosoma is an odd arthropod only known from the Middle Cambrian Spence Shale and Marjum Formations of Utah.  It is millipede-like in general form but might not be an early myriapod.  It’s not a trilobite but it could be a close relative.