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*?Lasanius problematicus* Traquair; 'ribs'/'fin rays'

Seggholm, [nr.] Muirkirk, [Lesmahagow, (Lanarkshire)], [Scotland] Downtonian, [Pridoli], Silurian (Upper) On loan 2682 to Mark Purnell of Leicester University. Formerly identifed as *Lasanius problematicus* Traquair.

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