Which One Is A Flexicalymene Senaria

[Cluros]

Hi fellow Fossil Forum members. I have been collecting Vermont trilobites in a location for awhile and am wondering if both of these trilobites are Flexicalymene senaria or do I have two different species. I keep getting conflicting opinions from my fellow collectors. I collected both trilobites from the same area. When I prepped them I thought that were some significant differences in the cephalons. Any thoughts would be appreciated.

[FossilDAWG]

I don't think they are the same. The one with the circle around it seems to have more of a "bell-shaped" glabella, which suggests it may be a Gravicalymene.

Don

[Cluros]

I forgot to mention they are middle Ordivician from the Chazy formation. The photos of Flexicalymene senaria on the web look nothing like the cephalon on the left.

[Harry Pristis]

For comparison: