Rarely Seen Weeksina unispina Trilobite

Weeksina unispina Trilobite

Trilobites Order Ptychopariida, Family Lonchocephalidae

Geological Time: Upper Middle Cambrian

Size: 8 mm

Fossil Site: Weeks Formation, House Range, Millard County, Utah

Weeksina unispina TrilobiteDescription: This plaque displays a rarely-seen example of a trilobite of the Order Ptychopariida, known as Weeksina unispina. It is easy to see where the genus derives its name. They possess a single spine on the 7th axial lobe, the source of the name of the genus. Few of the small trilobites are ever offered, with this one a fine, well-preserved example of the taxon..

click trilobite pictures to enlarge

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