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This illustration was used as figure 9 in our open-access paper: http://www.palarch.nl/wp-content/Wedel-and-Taylor-2013-Neural-spine-bifurcation-in-sauropod-dinosaurs-PJVP-10-11.pdf Wedel, Mathew J., and Michael P. Taylor. 2013a. Neural spine bifurcation in sauropod dinosaurs of the Morrison Formation: ontogenetic and phylogenetic implications. PalArch's Journal of Vertebrate Palaeontology 10(1):1-34. The figure caption is: Figure 9. Degree of neural spine bifurcation of presacral vertebrae in well-preserved Morrison Formation sauropod specimens representing several taxonomic groups. In all taxa with deep bifurcations, these are concentrated around the cervico-dorsal transition. 'No data' markers may mean that the vertebrae are not preserved (e.g., posterior dorsals of Suuwassea emilieae ANS 21122), that the degree of bifurcation cannot be assessed (e.g., anterior cervicals of Barosaurus lentus AMNH 6341), or that the serial positions of the vertebrae are uncertain so they contribute no information on serial changes in bifurcation (e.g., the four cervical vertebrae known for Barosaurus lentus YPM 429). The Camarasaurus specimens are roughly in ontogenetic order: C. lentus CM 11338 is a juvenile, C. grandis YPM 1905 and GMNH-PV 101/WPL 1995, and C. supremus AMNH 5761 are adults, and C. lewisi BYU 9047 is geriatric. See text for sources of data. It was the first illustration produced by this software, and the motivation for writing it. Our goal was to represent how deeply split the neural spines of the vertebrae are in the various taxa. We did this in two ways 1. By designing glyphs that show either a deep or shallow cleft, or a small notch, or no splitting at all; 2. By using colour to generate a "heat-map" show the degree of splitting (red hottest, then orange, then yellow, and green coolest). The final published version of this illustration was enhanced by hand in two ways (both by Matt): 1. The addition of a key at the top, explaining the meaning of each glyph. 2. The shape of the two most anterior vertebra was edited by hand to suggest the shape of the atlas/axis combination. The published version, incorporating the results of this hand-hacking, can be seen at http://svpow.com/papers-by-sv-powsketeers/wedel-and-taylor-2013-on-sauropod-neural-spine-bifurcation/ It would have been better for both of these additions to be done by VertFigure rather than needing a manual pass afterwards: if we'd had more time we probably would have enhanced the program accordingly, but we were in a hurry to get submitted. A future release might fix this.