Shiel Burn, nr. Monksfoot, [nr. Inches, Hagshaw Hill], (Lanarkshire), [Scotland] Fish Bed 2, [Fish Bed Formation, Glenbuck Group], [Sheinwoodian-Gleedonian], Silurian [Middle] Formerly referred to as *Thelodus sp.* (Traquair), and *Logania taiti* Stetson (genus name changed Maerss & Ritchie 1998). A member of the Loganiidae. Part and counterpart. Serrated edge reminiscent of *Birkenia sp.*.