Figure 2 in The morphology of Yujiangolepis liujingensis (Placodermi, Arthrodira) from the Pragian of Guangxi (south China) and its phylogenetic significance

Figure 2. Subcomplete skull roof of Yujiangolepis liujingensis Wang et al., 1998 (holotype IVPP V 1957). A, photograph of the skull roof in dorsal view; B, magnification around right central and anterior paranuchal plates; C, interpretative sketch of the skull roof after (A); D, right dorsolateral view of the skull roof. Abbreviations: a.PaN, anterior paranuchal plate; C, central plate; cc, central sensory groove; d.end.e, external foramen of the endolymphatic duct; d.end.i, internal foramen of the endolymphatic duct; f.Pi, pineal foramen; ioc, infraorbital sensory groove; lc, main lateral sensory groove; M, marginal plate; mpl, middle pit-line; N, nuchal plate; occ, occipital cross commissure; PaN, paranuchal plate; Pi, pineal plate; PM, postmarginal plate; pmc, postmarginal sensory groove; ppl, posterior pit-line; PrO, preorbital plate; PtN, postnasal plate; PtO, postorbital plate; R, rostral plate; rc, rostral sensory groove; sac, saculla of the inner ear; soc, supraorbital sensory groove. Scale bars = 1 cm.