Figure 2: Anatomy of the lobopodians O. ferox and A. pedunculata. | Nature Communications

Figure 2: Anatomy of the lobopodians O. ferox and A. pedunculata.

From: Cambrian lobopodians and extant onychophorans provide new insights into early cephalization in Panarthropoda

Figure 2

(a–h) O. ferox. (a) Laterally compressed specimen ELEL-SJ101888A; anterior is right. (b) Dorsoventrally compressed specimen ELEL-EJ100329A; anterior is left. (c) Close-up of anterior end in a showing head structures and outline of bulbous pharynx (dotted lines). Arrow points to mouth. (d) Close-up of anterior end in b showing a pair of branched antenniform appendages (branches indicated by arrowheads). (e) Specimen ELEL-SJ102011A showing left antenniform appendage with branches. Note annulations of antenniform appendage (arrowheads) and claws on first walking lobopod. (f) Specimen ELEL-SJ100307B showing an eye with a lens-like structure. Arrow indicates mouth. (g,h) Specimens ELEL-SJ100635 and ELEL-SJ100546A showing anterior anatomy, notably proboscis, eye and branched antenniform appendages. (i) Anterior end of A. pedunculata. Note branched antenniform appendages, eye-like structure (arrowhead) and putative proboscis delineated from the rest of the body. as, arcuate sclerite; at, antenniform appendage; bt, buccal tube; cl, claw; ey, eye; gu, gut; le1–le12, walking lobopods 1–12; lu, pharyngeal lumen; pb, proboscis; ph, pharynx; sc, sclerotized plate; vp, ventral papillae. Scale bars, 1 cm in a and b; 2 mm in c–i.

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