Fig. 4 Photographs of Nochelaspis maeandrine , IVPP V 26124.1, 4 from the light-yellow pelitic siltstone of the Xishancun Formation in Qujing, Yunnan, China
A. an incomplete headshield (left-half part) of N. maeandrine , V 26124.1 associated with an incomplete headshield of Laxaspis cf. L. qujingensis , in dorsal view; B. close-up of two branchial openings (box inset 1 of Fig. 4A); C. close-up of the ornamentation on the ventral plate (box inset 2 of Fig. 4A), showing small, dense granular tubercles; D. close-up of the ornamentation on the headshield (box inset 3 of Fig. 4A), showing large, stellate tubercles; E. cornual process and inner cornual process of the headshield, V 26124.4 Abbreviations see Figs. 2, 3 plus br.f. branchial fenestra; br.o. branchial opening; vp. ventral plate
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