Trilobites
Order Agnostida, Suborder Agnostina, Superfamily Agnostoidea,
Family Ptychagnostidae, Subfamily Diplagnostinae
Geologic Age: Middle Cambrian
4 mm
House Range, Wheeler Shale, Millard County, Utah
Remarks: Baltagnostus eurypyx is spinous, an uncommon trait among members
of Order Agnostida.
Also see: American Trilobites
