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On Wednesday I took a trip back to my Erieopterus spot in Pennsylvania to see if I couldn’t dig myself out a complete. After moving probably around 10 square feet of rock, all I came home with was some Algae’s, pterygotid pieces, and a Erieopterus Head. This is similar to the density of the Devonian Eurypterid faunas of NY. Ether way it’s looking like it’s gonna be a numbers game, and I don’t mind that with Eurypterids.

Hello All! For awhile I've known the Keyser Formation hosted eurypterids, and today was the day I encountered it! Me and 2 geologist gained access to an exposure on private property and were surveying it when I found a waterlime bed with overlying mudcracks, I would start my typical survey of the bed when I encountered a segment, and it just got better from there. Unlike other horizons I've collected all over this layer is not very dense, but consistently the bed was producing. After about 4 hours of intense digging I decided to call it quits for the day. 2 different and distinct eurypterid Species have been collected, one is some sort of Pterygotid likely the genus Acutiramus, and the other is the genus Erieopterus. The Erieopterus differs from the only other Devonian Eriopterus, Erieopterus microphthalmus in its head shape, with it being wider and the eyes being spread further. The best specimens collected were a plate with 2 heads on it and a Tergite from a pterygotid. Ill attach some pictures below. Top to Bottom: Erieopterus sp. Double head Erieopterus sp. (Note the legs on the left specimen) Pterygotid undet. close up of the scales, Pterygotid undet. Layer specimens were collected from.

This Eurypterid tail section is identified as Erieopterus microphthalmus. It is from the Chrysler Formation and is Devonian an age. I'm wondering if it is the proper identification for this tail segment.