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. 2011 May 9;108(21):8720–8724. doi: 10.1073/pnas.1101754108

Fig. 3.

Fig. 3.

Geometrical correspondences between elements. (A) The S1 elements match the posterior process of the S0. Per definition, the tip of the cusp points posteriorly. ant: anterior; post: posterior. (B) Closed arrangement of S elements. (C) Presumed growth position of the S2 (silver) as inferred by geometrical correspondences with the S3 and S4 elements (gold). (D) Proposed movement of the S0 against the M elements (silver: start and end positions; gold: pinching position). (A–D) c: caudal; d: dextral; do: dorsal; r: rostral; s: sinistral; v: ventral; blue circles: hypothetical cartilage.