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. 2020 Oct 20;8:e10145. doi: 10.7717/peerj.10145

Figure 19. Size and maturity are positively correlated in WIS Tylosaurus species.

Figure 19

(A) Scatterplot and statistics for TSL data. (B) Scatterplot and statistics for QH data. The growth stages and size data for TSL and QH of each specimen (for which measurements were available) included in the growth series including all three Tylosaurus taxa were converted into ranks and plotted. Congruence between size rank and growth stage rank was tested with Spearman rank-order correlation. Both TSL and QH have a significant positive correlation with growth stage. Shapiro–Wilk tests determined that growth rank, size rank, and raw measurement data are normally distributed.