Multivariate analyses

In order to reconstruct the morphospace occupation of PM PAL113 among diadectomorph trackways we utilized the parameters published by Buchwitz et al. (2021; Supplementary Table 2), Buchwitz & Voigt (2018; average values from measured step cycles of specimen Kletno No.1 and Marieta_NA; supplementary 3 and 4), and Mujal & Marchetti (2020; average values of trackway 1 of MNHN-LOD 83; table 1 and 2), added data obtained from PM PAL113, and performed a principal component analysis (PCA) using PAST 4.12b (Hammer, Harper & Ryan, 2001). Prior to the analysis, all raw continuous variables were z-transformed. The original values and z-scores, and the extended results of the PCA, are provided in Material SI. A .dat file, executable in PAST, is provided in Material SII. The same .dat file was used to construct box plots with selected values.