Extended Data Fig. 6: Additional ecdysozoans and spiralians from the Huayuan biota.
From: A Cambrian soft-bodied biota after the first Phanerozoic mass extinction

a–c, Priapulida. a, Palaeoscolecid, Tylotites sp. nov., showing triangular sclerites, NIGP 208834. b, New palaeoscolecid, showing everted pharynx (ph), introvert (in), scalids (sc) and gut (gt), NIGP 208835. c, New priapulid A, showing everted pharynx (ph), introvert (in), tail hook (hk) and gut (gt), NIGP 208836. d–f, Lobopodians. d, Collins’ monster-like new luolishaniid, showing gut (gt) and lobopods (lb), NIGP 208837. e, Hallucigenia sp. nov., showing gut and paired dorsal spines, NIGP 208838. f, New putative lobopodian B, showing numerous paired lobopod-like appendages (lb?), NIGP 208839. g, Problematic worm A, showing internal soft tissue and eliminated gut content (ec), NIGP 208840. h, Problematic worm B, showing internal soft tissue and a posterior projection (pp), NIGP 208841. i, Chaetognath, new chaetognath, close-up of jaw apparatus, NIGP 208842. j, New halwaxiid, showing anterior shell (as) and long curved sclerites, NIGP 208843. k, Problematic worm C, showing gut (gt) and other soft tissues, NIGP 208844. l, m, Brachiopods. l, Palaeobolus sp., showing pedicle (pd) and setae (st), NIGP 208845. m, Eohadrotreta duyunensis, showing pedicle (pd), NIGP 208846.