FIG. 23 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada

FIG. 23. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; specimen MHNM 01-135A, showing the head and paired fin skeleton, and the part of the disarticulated axial skeleton: A, photograph in immersion in water (detailed view of the branchial apparatus and ventral copular series in framed areas are shown in Figure 24); B, explanatory drawing ("gill rods" and middle part of gill arches omitted). Scale bar: 50 mm.