Conulariid or nothing?

[SilurianSalamander]

Found in Paleozoic gravel alongside crinoids, corals, and gastropods. Sorry if this is just wishful thinking! Thanks. The rock is about an inch tall

[Kane]

I'm leaning toward "no" as the transverse ribbing on them tend to be very tightly spaced. Unless there is a possibility of this being an impression of, say, a brachiopod, my guess is that this might be a geologic phenomenon known as "hackle fringe."