Rare Dresbachia Trilobite from Cambrian Utah

Name: Dresbachia amata

Trilobita, Trilobites Order Ptychopariida, Family Menomoniidae

Geological Time: Upper Middle Cambrian

Size: 9 mm long by 6 mm wide on a 38 mm by 41 mm matrix

Fossil Site: Weeks Formation, Millard County, Utah

Dresbachia TrilobiteDescription: This trilobite is a rare member of the family Menomoniidae, and as such is related to Menomonia, Nephalicephalus, and Densonella. All are highly-sought examples, and few collectors have seen an example of this taxon which bears a resemblance to Menomonia semele, but is far more rare. It is a most affordable example of this rare taxon.

click trilobite pictures to enlarge
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