Hi all,
This little pygidium was found in the Pontgravé River Formation near St-Mathias, Quebec. This strata is part of the Richmond Group.
As far as I can tell, this is a new occurrence of either Eomonorachus, Tricopelta or some other similar trilobite from the US.
Here's a PDF that I found useful: https://www.researchgate.net/publication/237172420_Ordovician_Pterygometopidae_Trilobita_of_North_America
What do you guys think?
@piranha, your vast knowledge will surely solve this riddle in a second or two..
Cheers,
Marc