Whittardolithus sp.
5 complete Trinucleids on black shale. The preservation is a little faint with a sort of white 'halo' effect.
Ordovician, Uppermost Llanvirn Series, 'Llandeilian' Stage.
Upper reaches of Whitsburn Dingle towards Pentivirn, Leigh, Shropshire.
Largest Trilobite : 1 x 1.1 cm.
