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. 2016 Jan 4;11(1):e0145805. doi: 10.1371/journal.pone.0145805

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© 2016 Campbell et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

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Fig 9 — Increase in length/width ratio (character 12), changing outline of lateral margin (character 13), articulation (character 14) and remodeling (character 15) of episquamosals: (A) TMP 1998.128.0001 (flipped), (B) CMN 1254, (C) AMNH 5656, (D) AMNH 5401, (E) NHMUK R4948 (courtesy of J. Mallon), and (F) CMN 8800. Blank arrows = unadorned episquamosal loci; solid arrows = articulated episquamosals; solid arrows with asterisks = remodeled episquamosals. Chasmosaurus belli (triangle), Chasmosaurus russelli (inverted triangles) and Chasmosaurus sp. (diamonds). [planned for page width].