Decoroproetus Trilobites

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Decoroproetus sp.
Waldron Shale Formation
Clark County, IN
Silurian
 
This trilobite, Decoroproetus sp., referenced by the Illinois Geological Survey in Tom Johnson's book on Trilobites, was only known by two complete specimens. This specimen is now the third to be recorded to be found complete. It measures 5/8" long and shows excellent preservation.