Fig. 2 in Dietary niches of creodonts and carnivorans of the late Eocene Cypress Hills Formation

Fig. 2.—Principal component analyses of dental indicators of diet for fossil and extant carnivorous mammals. A) Orientation Patch Count (OPC), Dirichlet's Normal Surface Energy (DNE), and log 10 body mass of lower carnassial teeth; B) OPC, DNE, and and log 10 body mass of upper carnassial teeth; C) ratios of width divided by length and height divided by length, and log10 body mass of lower carnassial teeth; D) ratios of width divided by length and height divided by length, and log10 body mass of upper carnassial teeth. Arrows indicate direction and strength of loading of the variables onto the PCs. The polar bear (Ursus maritimus) silhouette indicates the area of the PCA space occupied by larger species, while the stoat silhouette (Mustela erminea) indicates the area of the PCA space occupied by smaller species. Species codes for the extinct taxa are Brachyrhynchocyon dodgei (Bd), Daphoenus sp. (Dsp), Dinictis felina (Df), Hesperocyon gregarius (Hgreg), Hoplophoenus mentalis (Hm), Parictis cf. P. personi (Pper), Parictis cf. P. gilpini (Pg), Parictis parvus (Pp), Hemipsalodon grandis (Hgrand), Hyaenodon horridus (Hh), and Hyaenodon microdon (Hmicro). Extant species are represented by bold text. Species codes for the extant species are Crocuta crocuta (Cc), Felis silvestris (Fs), Martes martes (Mm), Neovison vison (Nv), Procyon lotor (Pl), Puma concolor (Pc), and Vulpes lagopus (Vl).