Ptychagnostus michaeli

Trilobites Order Agnostida, Suborder Agnostina, Superfamily Agnostoidea, Family Ptychagnostidae
Geologic Age: Middle Cambrian
4 mm
Marjum Formation, Millard County, Utah
Remarks: Ptychagnostus michaeli, with its five spines, is one of the rarest agnostids found in the Marjum Formation of Utah

Also see: American Trilobites

 

 

 

 

 

 

Ptychagnostus michaeli Agnostid Trilobite from Utah

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