ESM Figure S4 Palaeospondylus gunni, Achanarras Quarry (Devonian), Scotland. from Questioning hagfish affinities of the enigmatic Devonian vertebrate <i>Palaeospondylus</i>

Line drawing, ventrolateral view of chondrocranium. Black asterisk indicates position of jugular canal. Abbreviations: As in Figures 1, 2, S1, S2.