The specimens below could represent multiple species. I'm not enough of an expert to discern the differences.
Specimen #2 (with crinoid holdfast)
From the Givetian stage of the Devonian I have some examples of Lichenalia from the Wanakah Shale of New York, and the Hungry Hollow member of the Widder Formation in Ontario.
I found the specimens shown on this page in the Bois d'Arc formation (Cravatt member) near Clarita, OK which is Devonian in age (Lockhovian stage). The Bois d'Arc and Haragan formations interfinger with each other and are roughly the same age (Devonian, Lockhovian stage). They are both roughly correlative to the Helderberg fauna of New York and thus are contemporaneous with the Coyemans, Kalkberg and New Scotland formations.