Rarely Seen Calymene Silurian Trilobite from Canada

Description: I have just recently been able to secure a selection of Early Silurian trilobites from Quebec Province, Canada. This is another in the series which I will be posting. all of which are quite rare at least in part due to the fact that few have collected there. Seen here is a Calymene sp trilobite for which no literature reference could be located. There is a small amount of erosion to the distal and proximal ends of the axial lobe, but it is still an eminently-collectible example of the taxon.