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. 2016 Nov 30;3(11):160385. doi: 10.1098/rsos.160385

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© 2016 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 9. — Tooth development patterns of adult and embryo squaliform taxa plotted against the phylogenetic models of figure 1. (a–d) The phylogeny of Straube et al. [5] showing dental arrangements of lower (a) and upper (b) teeth of adults and lower (c) and upper (d) teeth of embryos. (e–h) The phylogeny of Naylor et al. [3] showing dental arrangements of lower (e) and upper (f) teeth of adults and lower (g) and upper (h) teeth of embryos. Dental patterns colour coded as alternate (red), single file (blue) and transitional (purple) dentitions. Squalean taxa not included in the current study are not considered.