FIG. 24 in The anatomy of Euphanerops longaevus Woodward, 1900, an anaspid-like jawless vertebrate from the Upper Devonian of Miguasha, Quebec, Canada

FIG. 24. — Euphanerops longaevus Woodward, 1900; Escuminac Formation, lower Frasnian (Upper Devonian), Miguasha, Quebec, Canada; details of the ventral copular elements and gill arches of MHNM 01-135A in the areas framed in Figure 23A: A, posterior part of the ventral series of "copular elements"; B, anterior part of the ventral series of "copular elements" and posterior extremity of the "anterior ventral rod". Photographed in immersion in water. Scale bars: 10 mm.