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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: The functional head of the Cambrian radiodontan (stem-group Euarthropoda) Amplectobelua symbrachiata

Fig. 3

Head carapace, gnathobase-like structures and body flaps of A. symbrachiata. a, YKLP 13313b. b, close-up of the head shield (boxed in a), arrows indicating the rim of the head shield. c, detail of another pair of GLSs (boxed in a). d, close-up of the basal extensions of a flap (boxed in a), note the filaments on the surface. e, close-up of an isolated GLS (boxed in a). f, combined interpretative drawing of YKLP 13313a, b. g, close-up of the triangular connecting region in the middle of the dumbbell shaped sclerite (boxed in h). h, close-up of the pair of P-elements and the intermediate rod-shaped sclerites. See Methods for abbreviations. Scale bars: a, f, 1 cm; b-e, g, 2 mm; h, 5 mm

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