Extended Data Fig. 6: Biomineralized fossils of the Castle Bank fauna.
From: A Middle Ordovician Burgess Shale-type fauna from Castle Bank, Wales (UK)

a, undescribed fenestellid bryozoan from uncertain level, attached to poorly preserved orthocone nautiloid (NMW.2021.3 G.62); b, phosphatic tube of the cnidarian Sphenothallus sp., from uncertain level (NMW.2021.3 G.63); c, brachiopod Monobolina ramsayi from level A0 (NMW.2021.3 G.68); d, unidentified acrotretid brachiopod (NMW.2021.3 G.90); e; encrusting brachiopod Schizocrania multistriata from uncertain level (NMW.2021.3 G.91); f, cnidarian Paraconularia sp. (NMW.2021.3 G.92). Scale bars: a–c, e–f: 1 mm; d: 0.5 mm.