Protoleptostrophia perplana brachiopod from the Moscow formation

Protoleptostrophia perplana is not an uncommon Brachiopod fossil in the middle Devonian but what is uncommon is to be able to find an intact specimen that is not a mold in the rock.  Below is a fairly good specimen of the species that has a valve preserved in calcite. It comes from the Deep Springs Road borrow pit in near Earlville, NY.  It is not 100% intact as the margin shows a rough edge which is likely due to the very thin and fragile nature of the shell.

This specimen was found at a borrow pit on Deep Springs Road in Madison County, NY which exposes the Windom shale member of the Moscow formation (middle Devonian in age, Givetian stage.)