Cephalon and pygidium in the photograph , as printed in the Treatise on Invertebrate Paleontology, Part O, Arthropoda 1, Revised, Trilobita, vol. 1 (1997), are at an angle to eachother. The distance between these parts is a best guess by the artist, but not necessarily correct to life. The remains of the three segment are rather eroded, so there representation may not be accurate either.

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