(green) were separated with Sarmatosuchus in the proterosuchid group, although with a negative silhouette value. At three groups (Figure 17B), the proterosuchids and erythrosuchids were separated, but three proterosuchids were separated into a third group: Fugusuchus, Sarmatosuchus, and the Panchet proterosuchid. While those species were grouped together, Sarmatosuchus and the Panchet proterosuchid had negative silhouette widths. When we ran the subset dataset through FANNY (Figure 18), the highest average silhouette value was at two groups (0.43), followed by three groups (0.32). At two groups (Figure 18A), all of the species in both groups had silhouette values over 0.2, except for Sarmatosuchus. Sarmatosuchus was also grouped with erythrosuchids, instead of proterosuchids. At three groups (Figure 18B), four species grouped together (shown in blue: Fugusuchus, the Panchet proterosuchid, Garjainia mandiba, and Sarmatosuchus.) Garjania and the Panchet proterosuchid had negative silhouette values, and most of the erythrosuchid group had silhouette values less than 0.4. F. Proterochampsia The data collected from Kellner et al. (2022) were analyzed for proterochampsian relationships by creating two subset datasets of proterochampsian taxa. The first one included an outgroup (Euparkeria capensis and Osmolskina czatkowicensis (based on multiple specimens and not just the holotype), resulting in the inclusion of 17 taxa and 153 of the 823 possible characters. The second group excluded the outgroup, making the total taxa 15 and the total characters used 214. The Pearson BDC results that included the outgroup taxa (Figure 19A) show four blocks of positive correlation (Proterochampsidae, Doswelliidae, Erpetosuchidae, and the outgroup), as well as two taxa that do not share positive correlation with any other taxa (Vancleavea and Litorosuchus). The only instances of negative correlation are between the erpetosuchid block and Vancleavea and Litorosuchus, as well as one instance of negative correlation between Euparkeria and Doswellia. The Spearman BDC results that included the outgroup taxa (Figure 19B) show three main blocks of positive correlation. The Proterochampsidae block shows positive correlation amongst its members and one example of positive correlation between Proterochampsa barrionuevoi and Vancleavea campi, but no negative correlation with the other taxa except between Pr. barrionuevoi and the outgroup taxa. The species within Doswelliidae (sensu Ezcurra 2016) were much more broken up. One block of positive correlation conFigure 11. Baraminic distance correlation (BDC) results for the Rhynchosauria subset dataset. Four plots were generated: A) Pearson BDC plot at 167 characters including problematic taxa (Noteosuchus, Langeronyx, and Eohyosaurus), B) Spearman BDC plot at 167 characters including problematic taxa, C) Pearson BDC plot at 429 characters excluding problematic taxa, and D) Spearman BDC plot at 429 characters excluding problematic taxa. Black squares indicate significant positive correlation, whereas open circles indicate significant negative correlation. Stenaulorhynchus stockleyi and Brasinorhynchus mariantensis shortened to S. stockleyi and B. mariantensis. MCLAIN, CLAUSEN, PEREZ, BEEBE, AND AHTEN Archosauromorph Baraminology 2023 ICC 499
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