Extended Data Fig. 3: Additional new sponge taxa from the Castle Bank fauna.
From: A Middle Ordovician Burgess Shale-type fauna from Castle Bank, Wales (UK)
a, small, complex hexactinellid sponge (level uncertain) with euplectellid-like skeletal strands (NMW.2021.3 G.35); b, tall cylindrical hexactinellid with hypodermal pentactins and rossellid-like architecture (NIGP175889); c, complex conico-cylindrical hexactinellid (NMW.2021.3 G.36); d, stalked ascosponge (new genus) from level A8 with small soft-tissue region (top) supported by long basalia (NMW.2021.3 G.37); e, Teganiella sp. from level A6, the first record from outside the Americas (NMW.2021.3 G.38); f, the most abundant sponge species at the site, a small conical ascosponge from level A9 (NMW.2021.3 G.39i); g, complex hexactinellid (NMW.2021.3 G.40); h, relatively large rossellid-like sponge with abundant prostalia (NMW.2021.3 G.39ii). Scale bars 1 mm.
