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*Lasanius sp.* Traquair; 'ribs'/'fin rays'

Shiel Burn, off Monk's Water [nr. Monksfoot, nr. Inches], Hagshaw Hills, (Lanarkshire), [Scotland] exposure west of fault, Fish Bed 2, Fish Bed Formation, Silurian [Upper] On loan 2682 to Mark Purnell of Leicester University.

Little skeletal ossification occurs in this member of the Anaspida (Lasaniidae), but unusually the fin rays/ribs appear to solid rather than void fossils.